Hey everyone!!
I am glad to have been part of this RN3 community (which I hope to continue being part of it).
I have an issue, some days ago I was charging the phone and it suddenly stopped charging. I was using a QC3.0 Aukey charger although current was about 700/800 mA, slow charging in fact.
I checked on other plugs and still didn't charge. Also, I had just used a Power Bank for my tablet some minutes ago, 3/4 bars were left, when I plugged my phone in, 0 bars were shown, then it didn't charge. I unplugged it and replug my tablet, it charged, I connected my phone back and none was charging then. I realised my phone had an issue.
I plugged it on my PC and it showed and error message, one device connected to the USB port was using more current than the USB Por can give. This probably meant my phone had a short-circuit
I decided to replace my charging board and put the original one (it was replaced at service center), which still worked.
I disconnected the battery and the PC kept on showing same error message. Then, the issue looked to be on the motherboard. A expensive repairing.
Yesterday I found this post: http://en.miui.com/forum.php?mod=viewthread&tid=744282
It says that deleting or replacing this safety diode of the motherboard should fix the issue and phone should charge again as usual.
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What should I do?
I have no ide about what I exactly have to do.
Thank u all!!!
Regards!
Any help please?
I have the same problem as you, I hope someone supports us in this, I'm not sure what to do with the diode
Enviado desde mi Redmi Note 3 mediante Tapatalk
miguelang611 said:
Any help please?
Click to expand...
Click to collapse
Already solved, just remove the diode from the logic card, with a flat screwdriver, mine now it is already charging
my phone first problem in battery. After replace in 3 days, think my charging board problem. before that i can charge around 900-1000ma but suddenly down to 40-680ma that not charging the battery but drain the battery. Solution: buy the new one.
seems like the board has short circuits. try to find it and repair
DonYayo said:
Already solved, just remove the diode from the logic card, with a flat screwdriver, mine now it is already charging
Click to expand...
Click to collapse
Hey man!!
Thank u so much!
I fixed my phone! It is charging perfectly!
In fact, I didn't think I was going to be able to fix it. I already bought a OnePlus 5 case because I was buying it today (also, I wasn't able to buy the OnePlus 5 on Wednesday 13 (I didn't see this post), but the coupon didn't work, lol.
Thanks and regards!
First i think that charginboard not working. Looking for right USB charginboard(SE/ kate) few month but not found. Diode removing fix charging issue but PC not recognize my phone anymore. This diode is probably necessary for USB connection so can anybody how to find replacement part?
txs bro DonYayo just broken with flat screw... thats work...
once i was having this problem too after trying Quick chargers. connecting to wall chargers, changing charging board, connecting to laptops doesn't get my phone charged. it shows the same overcurrent error. I tried connecting my phone to DESKTOP pc, and somehow it's able to recharge the phone. I'm not sure why it works, maybe someone can explain, but this maybe a solution for those having the same problem
QC3.0 has adaptable voltage, 5v 9v 12v 15v depending on the model. you burned the zener diode, the zener diode is to stabilize the voltage at 5v, more power makes a short circuit in them, when you cut the zener, you eliminated the short circuit but you also eliminated the voltage stabilizer, be careful with the charger that you use in the future since you have no more voltage stabilization.
Note 3 of Redmi has two zeners, one on the charging board and the other on the motherboard. One or both of them can get burned when using QC chargers, use the official 5v - 2A charger.
---------- Post added at 06:26 PM ---------- Previous post was at 06:25 PM ----------
mart94 said:
First i think that charginboard not working. Looking for right USB charginboard(SE/ kate) few month but not found. Diode removing fix charging issue but PC not recognize my phone anymore. This diode is probably necessary for USB connection so can anybody how to find replacement part?
Click to expand...
Click to collapse
QC3.0 has adaptable voltage, 5v 9v 12v 15v depending on the model. you burned the zener diode, the zener diode is to stabilize the voltage at 5v, more power makes a short circuit in them, when you cut the zener, you eliminated the short circuit but you also eliminated the voltage stabilizer, be careful with the charger that you use in the future since you have no more voltage stabilization.
Note 3 of Redmi has two zeners, one on the loading board and the other on the motherboard. One or both of them can get burned when using QC chargers, use the official 5v - 2A charger.
---------- Post added at 06:28 PM ---------- Previous post was at 06:26 PM ----------
salzzz said:
once i was having this problem too after trying Quick chargers. connecting to wall chargers, changing charging board, connecting to laptops doesn't get my phone charged. it shows the same overcurrent error. I tried connecting my phone to DESKTOP pc, and somehow it's able to recharge the phone. I'm not sure why it works, maybe someone can explain, but this maybe a solution for those having the same problem
Click to expand...
Click to collapse
QC3.0 has adaptable voltage, 5v 9v 12v 15v depending on the model. you burned the zener diode, the zener diode is to stabilize the voltage at 5v, more power makes a short circuit in them, when you cut the zener, you eliminated the short circuit but you also eliminated the voltage stabilizer, be careful with the charger that you use in the future since you have no more voltage stabilization.
Note 3 of Redmi has two zeners, one on the loading board and the other on the motherboard. One or both of them can get burned when using QC chargers, use the official 5v - 2A charger.
---------- Post added at 06:33 PM ---------- Previous post was at 06:28 PM ----------
Versions
Technology Voltage Current Max power Date release Notes
Quick Charge 1.0 5 V 2 A 10 W 2013 Snapdragon 600[3][4]
Quick Charge 2.0 5 V, 9 V, 12 V 2 A, 2 A, or 1.67 A 18 W 2015 Snapdragon 200, 208, 210, 212, 400, 410, 412, 415, 425, 610, 615, 616, 800, 801, 805, 808, 810[5]
Quick Charge 3.0 3.6 V to 20 V, dynamic with 200 mV increments 2.5 A or 4.6 A[6] 18 W 2016 Snapdragon 427, 430, 435, 617, 620, 625, 626, 650, 652, 653, 820, 821[5]
the problem is that xiaomi put two 5v zeners that burn in + 5v, you can only use the charger QC1.0 in the note 3 SD
Guys many many thanks for this thread. U saved my kenzo. I used to use this stupid Qc3 charger and burnt this diode. I had no idea earlier and went to service center. Even after repair and i used to use this qc3 charger.
This thread saved my kenzo. I did same thing and destroyed that diode . And my device is alive again.
I will never use qc3 again.
Many thanks again.
I know the mainboard diode.
But Can anyone show me the location of 2nd diode of charging board?
I found this safety diode location on charging board from miui forum.
Thanks Bro
This diode removal thing worked on my device. I am so thankful to you right now. Just please tell me whether this will affect my device health or not. Whether i have get this diode fixed from some professional.
Maliknick said:
This diode removal thing worked on my device. I am so thankful to you right now. Just please tell me whether this will affect my device health or not. Whether i have get this diode fixed from some professional.
Click to expand...
Click to collapse
Diode protects u from high voltage and current. If u using without diode then only use standard 5v 2A charger to keep device safe. And don't use QC charger.
naik2902 said:
Diode protects u from high voltage and current. If u using without diode then only use standard 5v 2A charger to keep device safe. And don't use QC charger.
Click to expand...
Click to collapse
Can this part be repaired? If necessary, I 'll get it repaired soon.
Maliknick said:
Can this part be repaired? If necessary, I 'll get it repaired soon.
Click to expand...
Click to collapse
If charging board diode u removed then u can buy from aliexpress and open ur device and replace new board by urself. Only small screwdriver is needed. No service center needed.
If u removed diode of mainboard then yes u need to go to service center. I m not sure they will replace diode or motherboard coz its very compact board. Dont know whether they will do soldering to such a small board. But they will charge u.
If u were using QC 2 or Qc3 charger before then dont use it. Just use stock charger.
Maliknick said:
Can this part be repaired? If necessary, I 'll get it repaired soon.
Click to expand...
Click to collapse
I got the part from here: https://es.aliexpress.com/store/pro...0505B-VCUT0505-0505B/1294792_32245670617.html
Any technician that's experimented in replacing SMD components with hot air guns should be able to do it.
I got one of those stations, but forgot to get the flux. still watiign for it lol.
redmi note 3 not charging again..
Hi everyone, I have damaged the Zener diode using a screwdriver and my device worked for next 15 days, but again my phone is not charging as I have connected it from Xiaomi power bank by mistake. Can anybody tell me that how can I repair it now? any kind of help will be highly appreciated.
Thanks in advance.
Thanks. Crushed that diode and it is charging again.
Related
Is there a fix or work around to the slow charging issue? If I use the stock charger and cable that came with the DNA I am fine, but my OEM Thunderbolt charger (which looks the same) and my car charger I got from Amazon (which I understand may be a knock off but had worked before on the DNA) or any other charger give me a slow charging notification.
This is a pretty big deal for me since I use my phone a lot for work. If I am in the car my phone is not charging fast enough to keep up with drain from the navigation.
I am rooted, s-off, twrp, and running Viper ROM 1.2.0. I understand HTC implemented this "feature" with the latest update. I couldn't find any info about a fix so are people just dealing with it?
Spaded21 said:
Is there a fix or work around to the slow charging issue? If I use the stock charger and cable that came with the DNA I am fine, but my OEM Thunderbolt charger (which looks the same) and my car charger I got from Amazon (which I understand may be a knock off but had worked before on the DNA) or any other charger give me a slow charging notification.
This is a pretty big deal for me since I use my phone a lot for work. If I am in the car my phone is not charging fast enough to keep up with drain from the navigation.
I am rooted, s-off, twrp, and running Viper ROM 1.2.0. I understand HTC implemented this "feature" with the latest update. I couldn't find any info about a fix so are people just dealing with it?
Click to expand...
Click to collapse
You can flash a kernel like crpalmers or zarboz's kernels with fast charging implemented. But what I recommend is buying a USB charger that wont have that issue.
Take your phone somewhere that they have a Nexus 7 or Asus tablet set up on display with the regular charger hooked up.
They sell the chargers lots of places, the Nexus 7 will be best both spec wise and it comes with a pretty nice micros USB cable but I see the transformer prime charger in more places to walk in and purchase retail brick and mortar.They're solid chargers that will deliver the power your phone will allow. You just have to be careful when using it when charging with fast charging enabled it gets warm because it's running that current through their. The OEM charger only runs about 70% of the rated current through there.
Best Buy has a RocketFish 12volt car charger micro USB with an extra USB slot for a second USB cable and device. I almost never use car chargers but I was actually impressed with the quality of this charger. Also HotTips makes a charger that's rated at 5.0 amps and I believe as long as it's not a cheap crumby USB cable it will work fine. A lot of times it's the cable itself not the charger, so I would try taking your USB cable from home to work and plugging it up to that same USB charging plug and see if you get the same slow charging icon.
Thanks for the thorough response. I tried to do some testing combining different cables and charges and the only one that consistently gives me slow charging is the car charger (which worked fine previously). I have a Transformer Prime charger and Droid Razr charger that both worked fine. My Thunderbolt charger worked when I tried this time but has given me the slow charging notification in the past.
I may have to pick up one of the car chargers you mentioned because that is the most important. My phone is running great otherwise with Viper ROM and the kernel that comes with it so I'd rather not change it.
CharliesTheMan said:
You can flash a kernel like crpalmers or zarboz's kernels with fast charging implemented. But what I recommend is buying a USB charger that wont have that issue.
Click to expand...
Click to collapse
I believe that forces fast charge when connected to a computer via usb. Some people have said it may fry your usb port but I don't know how true that is.
Android phones in general charge slower when connected via car charger.
this Motorola one here works fine:
http://www.amazon.com/gp/aw/d/B000S5Q9CA
or you could always get a power inverter and then use whatever cable you want.
Get the Verizon car charger. Works fine for me..
Sent From My Htc Droid Dna...
I ordered these cables from Amazon, got them today and I'm still getting slow charging from the car charger. These are really high quality and still not working. This is pretty ridiculous, HTC should have at least made this optional.
I posted on this a while back, its the cable that causes the issue. If you open up the cable and short the data wires it works perfect. All you needs is wire strippers, electrical tape and shrink tubing.
Sent from my HTC6435LVW using Tapatalk 2
arisch86 said:
I posted on this a while back, its the cable that causes the issue. If you open up the cable and short the data wires it works perfect. All you needs is wire strippers, electrical tape and shrink tubing.
Click to expand...
Click to collapse
Thanks for the suggestion. The cables I bought are very high quality, charging specific cables, and I'm still getting slow charging in the car. If HTC only wants to support official OEM chargers that's fine, but then they need to make an official car charger!!
Also, why does HTC only support using the OEM charger when the DNA supports Qi charging? Doesn't make "Sense"
arisch86 said:
I posted on this a while back, its the cable that causes the issue. If you open up the cable and short the data wires it works perfect. All you needs is wire strippers, electrical tape and shrink tubing.
Sent from my HTC6435LVW using Tapatalk 2
Click to expand...
Click to collapse
I tried that with the Rezound awhile back and afterwards it still registered as 'charging USB'(aka slow charging).
P.S. that Motorola charger I mentioned above, I opened one up before and noticed it just had the 2 power cables(black & white) and they were also much thicker then the standard cables w/ all 4 wires.
When I did my cable hacks I cut the cable in half, put a piece of shrink tubing on one end reconnected the power wires, shorted the data wires on both plugs. When you do this you cannot reconnect the data wires. They must be separated. I'll post some pics in a few to show you what I mean.
Sent from my HTC6435LVW using Tapatalk 2
---------- Post added at 01:27 PM ---------- Previous post was at 01:15 PM ----------
Basically this is what you want it to look like...connect the positive and negative, you can reconnect the shielding too. Also I highly recommend soldering the wires together. Adds strength.
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Sent from my HTC6435LVW using Tapatalk 2
You can do the cable hack shown in the post above as some non OEM chargers do not have the data wires shorted at the charger itself. You can either hack the cables, or if you need the cable for data, then modify your charger. Please make sure your charger is rated at least 800mA. Any charger rated 800mA or below will charge slow. Computer usb ports are rated 500mA and this is why it charges slow. My car's radio has a usb hook up and it also charges my phone at 500mA which is not enough if I'm calling, navigating, etc. The OEM charger is rated 1A. You can use a 2A charger as well but don't use it everyday. Higher rated chargers do charge the battery quicker, but at the expense of the long term battery life.
Sent from my HTC6435LVW using xda app-developers app
In my testing even shorting the chargers data pins on chargers seems to be more of a miss. I've done a few and even after shorting them they still state USB mode. It mainly stems from the data pins being present in the cable itself. Two of the chargers I shorted were for a vehicle and they were rated for 2.0 amps. Also if just charging the phone yes don't use high output chargers. But if charging in the car high output won't hurt if you are using navigation, music etc...it actually needs the higher output to charge hence needing to charge at the AC rate.
Sent from my HTC6435LVW using Tapatalk 2
Charging
I have this issue as well now, I never had it till the update back in Feb. I used other Android phones on my car charger and they charge just fine and it only happens with my DNA. I think there is a firmware issue that is causing this to happen.
This afternoon I hacked a cable as shown above, to use with my car charger. I'm glad to report it worked like a champ and my phone went from slow car charging to very rapid charging.
Thanks for the tip.
Sent from my HTC6435PC
Does anyone else notice that the charging on the phone is slow? The charge even goes down as i'm surfing the web with it plugged in. I'm currently using the sony power brick that came with it. I'm experimenting with different ones at the moment. Right now I'm using the Vita charger. But compared to how my Note 3 charges, this one pales in comparison.
Please provide tips if you have any. I am currently in the mood to purchase a car charger as well.
poisonsushi319 said:
Does anyone else notice that the charging on the phone is slow? The charge even goes down as i'm surfing the web with it plugged in. I'm currently using the sony power brick that came with it. I'm experimenting with different ones at the moment. Right now I'm using the Vita charger. But compared to how my Note 3 charges, this one pales in comparison.
Please provide tips if you have any. I am currently in the mood to purchase a car charger as well.
Click to expand...
Click to collapse
What cable are you using to charge it? Try using the original cable. Android phones usually charge at a maximun of 1.5a so the one that comes with the phone it's Ok.
Enviado desde mi Xperia Z Ultra usando tapatalk 4
Mine's charging quite fast. It takes about 2 hours if i use the dock. (1100-1300 mA)
Jaime360 said:
What cable are you using to charge it? Try using the original cable. Android phones usually charge at a maximun of 1.5a so the one that comes with the phone it's Ok.
Enviado desde mi Xperia Z Ultra usando tapatalk 4
Click to expand...
Click to collapse
I was using some generic cable, not the suplied Sony one, cuz I thought they were all the same.
my phone came with European charger.
So I bought it this Micro USB Quick Charger from the US sony store. It's coming with some over voltage to charge quickly.
avetny said:
my phone came with European charger.
So I bought it this Micro USB Quick Charger from the US sony store. It's coming with some over voltage to charge quickly.
Click to expand...
Click to collapse
The specs on the sony store
Power
*AC Power : 1500mA
*Output Voltage : 120v
*Charging Connector : Micro USB
Output voltage at 120v? ..wow quick charge taken to a whole new level
shouldn't it look something like
*AC Power : 120v
*Output Voltage : 5v 1500mA
*Charging Connector : Micro USB
SÜPERUSER said:
The specs on the sony store
Power
*AC Power : 1500mA
*Output Voltage : 120v
*Charging Connector : Micro USB
Output voltage at 120v? ..wow quick charge taken to a whole new level
shouldn't it look something like
*AC Power : 120v
*Output Voltage : 5v 1500mA
*Charging Connector : Micro USB
Click to expand...
Click to collapse
what are you trying to say ?
regular Sony charger is ENERGY STAR (loss less than 30mW)
avetny said:
what are you trying to say ?
Click to expand...
Click to collapse
That the output voltage is specified as 120 volt at the SONY store homepage. It should be 5v
SÜPERUSER said:
That the output voltage is specified as 120 volt at the SONY store homepage. It should be 5v
Click to expand...
Click to collapse
So?
avetny said:
So?
Click to expand...
Click to collapse
just fun to see them write their specs wrong
SÜPERUSER said:
just fun to see them write their specs wrong
Click to expand...
Click to collapse
hmm I think everything is correct. Both phone chargers got AC Power : 1500mA. But quick charger got Output Voltage : 120v. And regular is 50v.
Yesterday I full charged my sony smart watch less than for 20min
avetny said:
hmm I think everything is correct. Both phone chargers got AC Power : 1500mA. But quick charger got Output Voltage : 120v. And regular is 50v.
Yesterday I full charged my sony smart watch less than for 20min
Click to expand...
Click to collapse
With that kind of voltage your ultra doesn't stay thin very long mate, definitely an error on the site.
You can't put more then 4.2V per cell. When it's more it will explode, in our phone there is one cell. My acer a700 have 3 cells, so that unit is charged with 12.6V.
You can charge faster by raising the current. Our cell is 3000mah, normally charged with 1500mah (0,5C). It should be fine to charge with 3000mah (1C). If the cell is decent quality it will take 6000mah (2C), but this reduces the charge cycles significantly. When the cell is inferior it will slowly starts to swell.
Everytime you double the amps the charge time halves (theoreticaly).
I would stick with 1500mah, done in 2 hours. There's always possibilty to charge.
This is what happens when you put more then 4.2V per cell into a lipo accu. In our phone there is a lion battery but this is almost the same. Lipo has a higher energy density.
poisonsushi319 said:
Does anyone else notice that the charging on the phone is slow? The charge even goes down as i'm surfing the web with it plugged in. I'm currently using the sony power brick that came with it. I'm experimenting with different ones at the moment. Right now I'm using the Vita charger. But compared to how my Note 3 charges, this one pales in comparison.
Please provide tips if you have any. I am currently in the mood to purchase a car charger as well.
Click to expand...
Click to collapse
I've been using different chargers and different cables, all at least able to charge at 1.5 amps. My results have been essentially the same: If I leave it alone, it charges rapidly, I'd say at about 2 hours and some change to full. However, if I start using it (especially on high brightness with lots going on) the charge slows down to a hault. This is the same on most Android devices. From what I've seen, the new snapdragon 800 chipsets are able to at least continue charging even through heavy use. Just not very quickly. I know the galaxy devices don't even charge if you use them heavily enough (with the exception of the Note 3 of course).
Sent from my C6802 using Tapatalk
poisonsushi319 said:
Does anyone else notice that the charging on the phone is slow? The charge even goes down as i'm surfing the web with it plugged in. I'm currently using the sony power brick that came with it. I'm experimenting with different ones at the moment. Right now I'm using the Vita charger. But compared to how my Note 3 charges, this one pales in comparison.
Please provide tips if you have any. I am currently in the mood to purchase a car charger as well.
Click to expand...
Click to collapse
I've experienced this with another device, it was caused by a faulty usb cable. One of the wires inside was almost cut, there was only connection with a couple of the twisted core wires. 80% was cut, big increase in resistance.
I did a massive study on lion batteries last year, and found that voltage does have an impact. (pulled apart my battery and used various voltage/hz/amp input...
The major issue with the input is the heat. If you quick charge it for an hour then you are fine. But using quick charge, and then using your device will cause massive heat because you'll be charing it for more than an hour, and using your device uses CPU... (goes without saying).
Expanding and contracting the battery is what causes decay. The material inside the battery that holds the positive ions will crack and cause less 'hold' for these ions. This will result in less ions being able to be stored.
This also may also cause hardware issues flexing the internals.
result:
5v is fine, it comes down to 1.5 - 1.8 amps input... anything over that and you'll really need to check on the heat of the battery. There is also a sensor that detects input and output of amps. This sensor can get fried easily, so be careful not to wreck it!
What ever you do... DON'T put your device in the fridge or freezer if its hot. That will cause massive temp change, and mess with more than just your battery.
poisonsushi319 said:
I was using some generic cable, not the suplied Sony one, cuz I thought they were all the same.
Click to expand...
Click to collapse
They are not the same. Charging speed changes a lot depending on what cable you use. Did I solve your problem?
Enviado desde mi Xperia Z Ultra usando tapatalk 4
Jaime360 said:
They are not the same. Charging speed changes a lot depending on what cable you use. Did I solve your problem?
Enviado desde mi Xperia Z Ultra usando tapatalk 4
Click to expand...
Click to collapse
i have not noticed any difference. I think I just have to leave it along. Also isn't the quick charger from sony store the same one we get in the box? I'm thinking about getting the samsung charger from the Note 3, because the Note 3 charges hella fast and I can feel the charger box getting warm too.
poisonsushi319 said:
i have not noticed any difference. I think I just have to leave it along. Also isn't the quick charger from sony store the same one we get in the box? I'm thinking about getting the samsung charger from the Note 3, because the Note 3 charges hella fast and I can feel the charger box getting warm too.
Click to expand...
Click to collapse
It's very normal for a charger to get warm. You should watch the battery, that should not get warm.
poisonsushi319 said:
i have not noticed any difference. I think I just have to leave it along. Also isn't the quick charger from sony store the same one we get in the box? I'm thinking about getting the samsung charger from the Note 3, because the Note 3 charges hella fast and I can feel the charger box getting warm too.
Click to expand...
Click to collapse
I was thinking about plugging the Official Sony usb cord into my old Note 2 adapter because it's 2amps! the Note 2 cord also appears to be a higher gauge! I don't want to fry the battery on this thing, I wonder would .5 additional amps be ok?
samsmalls said:
I was thinking about plugging the Official Sony usb cord into my old Note 2 adapter because it's 2amps! the Note 2 cord also appears to be a higher gauge! I don't want to fry the battery on this thing, I wonder would .5 additional amps be ok?
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Like I mentioned earlier in my other topic (sadly we can't edit topic titles)
Here is the proof that the Z2 does support QuickCharge tech. Now all we need to do is find the QuickCharge certified adapters! Lets get to work guys!
http://www.qualcomm.com/snapdragon/blog/2014/06/04/quick-charge-20-has-arrived
Just a heads up, a notice from that blog post:
Contain the hardware necessary to achieve Quick Charge 2.0 charging speeds. It is at the device manufacturer’s discretion to fully enable this feature. A Quick Charge 2.0 certified power adapter is required. Different Quick Charge 2.0 implementations may result in different charging times.
Click to expand...
Click to collapse
Emphasis mine. So while the hardware support might be there, it does not necessarily mean that the Z2 has it enabled yet/properly.
Also, finding good information on those adapters mentioned wasn't easy. Let's hope they hit market sooner rather than later.
Einride said:
Just a heads up, a notice from that blog post:
Emphasis mine. So while the hardware support might be there, it does not necessarily mean that the Z2 has it enabled yet/properly.
Also, finding good information on those adapters mentioned wasn't easy. Let's hope they hit market sooner rather than later.
Click to expand...
Click to collapse
Sony is enabling them in the very next update, or so I heard.
Right now finding the charger is the issue.
Here's a review by someone with a Z2 and one of those chargers :
http://pcmanabu.com/xperia-z2-so-03f-charge/
Dude, that's a 1.8a charger from what I read on the translated page. You wanna talk about fast charging, pick up an Oppo Find 7 with VOOC... 4.2a and it uses it!
farfromovin said:
Dude, that's a 1.8a charger from what I read on the translated page
Click to expand...
Click to collapse
Yes, 1.8A, but also at 9V DC, which is the key difference here. Quick Charge 2.0 apparently supports charging at higher voltages (9, 12 and even 20 in some cases).
Information regarding ChiPhy 100, an IC that implements Quick Charge 2.0 and describes the basics, including voltages supported by different classes of devices:
https://www.powerint.com/products/chiphy-family/chiphy
Einride said:
Just a heads up, a notice from that blog post:
Emphasis mine. So while the hardware support might be there, it does not necessarily mean that the Z2 has it enabled yet/properly.
Also, finding good information on those adapters mentioned wasn't easy. Let's hope they hit market sooner rather than later.
Click to expand...
Click to collapse
Quoted from http://www.qualcomm.com/snapdragon/blog/2014/06/04/quick-charge-20-has-arrived :
Here are just some of the devices and certified accessories as of June 3, 2014:
Smartphones
Sony Xperia Z2
HTC One (M8)
Xiaomi Mi3
Samsung Galaxy S5 (Japan)
Sharp Aquos Zeta
Fujitsu Arrows NX
Yes, we know this from the URL in the first post, and like I mentioned above, Qualcomm states the following in that blog post:
Contain the hardware necessary to achieve Quick Charge 2.0 charging speeds. It is at the device manufacturer’s discretion to fully enable this feature.
Click to expand...
Click to collapse
The Z2 has the hardware required, but it doesn't mean Sony have enabled this or made sure it's working properly. With barely any available chargers supporting Quick Charge 2.0, we'll just have to wait and see. There's no reason why it should not be fully enabled, but I'm a cynic so I'd rather see it tested with the Z2 before I believe it
Einride said:
Yes, 1.8A, but also at 9V DC, which is the key difference here. Quick Charge 2.0 apparently supports charging at higher voltages (9, 12 and even 20 in some cases).
Information regarding ChiPhy 100, an IC that implements Quick Charge 2.0 and describes the basics, including voltages supported by different classes of devices:
https://www.powerint.com/products/chiphy-family/chiphy
Click to expand...
Click to collapse
Current is all that matters with charging times.
farfromovin said:
Current is all that matters with charging times.
Click to expand...
Click to collapse
You what now?! So all chargers should just use the lowest voltage possible since that doesn't matter anyway?
Power is what matters! Power = voltage x current. Going from 5V to 9V while still pumping out 1.8A means the (potential) power output is almost doubled. Yes, you'll lose some of the power due to heat, but the power still increases a lot. This of course implies that the device can handle a higher voltage, which it seems Quick Charge 2.0 devices can.
Quick Charge 1.0 was device-only and therefore only 5V, but could boost the current output when the battery was (close to) discharged, which reduced charge time. Quick Charge 2.0 requires both the device and charger to support it and because of that it can also output different voltages, depending on what the receiving end supports/negotiates.
http://www.qualcomm.com/chipsets/quick-charge#features
Quick Charge 2.0 includes all Quick Charge 1.0 features and:
Automatic Input Voltage Detection (AIVD) and High Voltage Dedicated Charging Port (HVDCP) (Quick Charge 2.0)
Fully USB-interoperable backwards-compatible charging for >6V, 9V, 12V and beyond
Click to expand...
Click to collapse
Note the last point: you won't fry any devices if they don't support QC 2.0, the charger will just act as a regular 5V USB charger then.
Sadly, there are no numbers out there from charging a supported phone using Quick Charge 2.0. It would be very interesting to see which voltages and currents used at various stages throughout the charging.
Einride said:
You what now?! So all chargers should just use the lowest voltage possible since that doesn't matter anyway?
Power is what matters! Power = voltage x current. Going from 5V to 9V while still pumping out 1.8A means the (potential) power output is almost doubled. Yes, you'll lose some of the power due to heat, but the power still increases a lot. This of course implies that the device can handle a higher voltage, which it seems Quick Charge 2.0 devices can.
Quick Charge 1.0 was device-only and therefore only 5V, but could boost the current output when the battery was (close to) discharged, which reduced charge time. Quick Charge 2.0 requires both the device and charger to support it and because of that it can also output different voltages, depending on what the receiving end supports/negotiates.
http://www.qualcomm.com/chipsets/quick-charge#features
Note the last point: you won't fry any devices if they don't support QC 2.0, the charger will just act as a regular 5V USB charger then.
Sadly, there are no numbers out there from charging a supported phone using Quick Charge 2.0. It would be very interesting to see which voltages and currents used at various stages throughout the charging.
Click to expand...
Click to collapse
So, let's go find a charger with 9V DC and 2 A output... and connect it to Sony Xperia Z2! Do you think that'll work good?
V4LKyR said:
So, let's go find a charger with 9V DC and 2 A output... and connect it to Sony Xperia Z2! Do you think that'll work good?
Click to expand...
Click to collapse
Of course not, and I've never claimed that either. If you have a QC 2.0 capable charger AND device, it can apparently charge at higher voltages, because both devices support it!. Nowhere did I state that the Z2 would be fine being hooked up to a 9V/2A "dumb" charger.
The OPPO Find 7/7a is already using this, although its called VOOC charging.
The charger is rated 5V == 4.5A
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more about VOOC Charging
Einride said:
Of course not, and I've never claimed that either. If you have a QC 2.0 capable charger AND device, it can apparently charge at higher voltages, because both devices support it!. Nowhere did I state that the Z2 would be fine being hooked up to a 9V/2A "dumb" charger.
Click to expand...
Click to collapse
What is a "QC 2.0 capable charger" ? As I've seen that charger on that Japanese site, it supports 5V, 9V and 12V. Doesn't mean that the charger transfers power on all these voltage levels, right? It selects one of them. So I'm saying, we can select the 9V 2A and go try it. Or 12V 1.25A.
From the datasheet for that ChiPhy 100 IC, https://www.powerint.com/sites/default/files/product-docs/chiphy_family_datasheet.pdf:
With D+ and D- short-circuited the normal handshake between the AC-DC adapter (DCP) and powered devices (PD) as described in the USB Battery Charging Specification 1.2 can commence. After switch N5 has been turned on CHY100 starts monitoring the voltage level at D+. If it continuously stays above VDAT(REF) (typ. 0.325 V) and below VSEL(REF) (typ. 2 V) for at least 1.25 seconds CHY100 will enter Quick Charge 2.0 operation mode. If the voltage at D+ drops any time below 0.325 V CHY100 resets the 1.25 seconds timer and stays in USB Battery Charging Specification 1.2 compatibility mode with a default output voltage of 5 V
Click to expand...
Click to collapse
There's also an "output voltage lookup table" being used to select the voltage used, based on what the device asks for (see table 1 in the data sheet):
Code:
D+ D- Output Switch Status
0.6V 0.6V 12V N1 = N2 = On, N3 = Off
3.3V 0.6V 9V N1 = On, N2 = N3 = Off
3.3V 3.3V 20V N1 = N2 = N3 = On
0.6V GND 5V (default) N1 = N2 = N3 = Off
I heard about the Oppo Find 7's new charging tech, nice to see some more detailed information on it. VOOC seems to use what is essentially several battery cells and a battery pack with 8 contact points (not really any issue if it's an internal battery pack). It also requires a 7-pin USB cable it seems. Pretty clever, but requiring special USB cables is a bit of a downer. I'd rather have standardized cables and specialized chargers, but maybe that's just me
farfromovin said:
Dude, that's a 1.8a charger from what I read on the translated page. You wanna talk about fast charging, pick up an Oppo Find 7 with VOOC... 4.2a and it uses it!
Click to expand...
Click to collapse
Brilliant idea , lets make that happen
Zebra-Snow said:
Brilliant idea , lets make that happen
Click to expand...
Click to collapse
Nice, its a DoCoMo charger, and only 2,376 Yen ($23.76) here in Japan..Will have to see if I can get one at the DoCoMo shop....
cable
I'm planning to buy a quick charger for my Z3. Maybe i'll buy this one. I just want to know, what cable should i use? or will the default cable of the Z3 would enable quick charge? Here is the charger i'm planning to buy.
http://www.pure-gear.com/extreme-usb-wall-charger-849.html
I have an love it. Great build quality and definitely the fastest charger I've ever had. Pick up a cord to support the speed though.
Read through, you'll see the cords I'm using.
http://forum.xda-developers.com/xperia-z2/accessories/running-official-qc-2-0-chargers-t2919105
The Driv3r said:
I have an love it. Great build quality and definitely the fastest charger I've ever had. Pick up a cord to support the speed though.
Read through, you'll see the cords I'm using.
http://forum.xda-developers.com/xperia-z2/accessories/running-official-qc-2-0-chargers-t2919105
Click to expand...
Click to collapse
Thanks. Do you own z2 now and the pure gear? How about if you use the default cable from Sony,will it charge as fast? And also, can it quick charge at the magnetic port?
Sent from my D6633 using XDA Free mobile app
The oem cable won't charge as fast. In my tests it topped out alot lower. Get the one I listed first (pawtek). It charges very fast, no heat an is extremely solid.
I use it both on my z2 d6503 an z2 tablet.
The oem mag charger isn't as fast, even with puregear attached. That said I don't use the quick charge overnight, only when I need it.
Motorola bundles the phone with a 550mA, which makes charging very slow.
Has anybody tried a high power (2A) charger? How long does it take to charge?
What is max current the phone has drawn/ is capable of charging with?
Techguy18 said:
Motorola bundles the phone with a 550mA, which makes charging very slow.
Has anybody tried a high power (2A) charger? How long does it take to charge?
What is max current the phone has drawn/ is capable of charging with?
Click to expand...
Click to collapse
I have charged with the following charger which was bundled with my HTC Desire back in the day:
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And I believe it is the cause of my phone resetting once per charge, but it still works, and is definitely quicker.
I use a micromax 1amp charger and it charges my moto e in 2 hours 30 mins. Better than the moto charger which takes 4 hours to do so
---------- Post added at 12:34 PM ---------- Previous post was at 12:29 PM ----------
Undesirable said:
I have charged with the following charger which was bundled with my HTC Desire back in the day:
And I believe it is the cause of my phone resetting once per charge, but it still works, and is definitely quicker.
Click to expand...
Click to collapse
What is the power output of your charger?
sumitps2 said:
I use a micromax 1amp charger and it charges my moto e in 2 hours 30 mins. Better than the moto charger which takes 4 hours to do so
---------- Post added at 12:34 PM ---------- Previous post was at 12:29 PM ----------
What is the power output of your charger?
Click to expand...
Click to collapse
1 amp, by the looks of it.
sumitps2 said:
I use a micromax 1amp charger and it charges my moto e in 2 hours 30 mins. Better than the moto charger which takes 4 hours to do so
---------- Post added at 12:34 PM ---------- Previous post was at 12:29 PM ----------
What is the power output of your charger?
Click to expand...
Click to collapse
Have you tried using a higher power charger? 1.5A or 2.1A ?
Techguy18 said:
Have you tried using a higher power charger? 1.5A or 2.1A ?
Click to expand...
Click to collapse
Sorry, but no. I'm just saying that your phone might reboot itself like mine did if you use higher than normal voltage. I haven't 100% confirmed this yet.
Undesirable said:
Sorry, but no. I'm just saying that your phone might reboot itself like mine did if you use higher than normal voltage. I haven't 100% confirmed this yet.
Click to expand...
Click to collapse
Higher power chargers don't supply higher voltage, unless it's a QC 2/ other proprietary charger, but those require the phone to support it, and will not use high voltage unless the phone requests it.
I was asking about a normal 5V USB charger which is capable of higher current(not voltage).
Techguy18 said:
Have you tried using a higher power charger? 1.5A or 2.1A ?
Click to expand...
Click to collapse
Couldn't do that for now. Will tell you later if i try something like that.
I have an LG 1.8A charger and an iPad 10W 2.1A charger, both basically are capable of fully charging the Moto E in under 1.5 hours (based on a test I did last night after my first rundown).
So yes, having a charger that's capable of supplying more current will most certainly charge the Moto E faster, obviously. And no, this Moto E of mine hasn't suffered from any random full reboots or resets but I've only had it for just over 24 hours, if something does happen I'll report on it.
br0adband said:
I have an LG 1.8A charger and an iPad 10W 2.1A charger, both basically are capable of fully charging the Moto E in under 1.5 hours (based on a test I did last night after my first rundown).
So yes, having a charger that's capable of supplying more current will most certainly charge the Moto E faster, obviously. And no, this Moto E of mine hasn't suffered from any random full reboots or resets but I've only had it for just over 24 hours, if something does happen I'll report on it.
Click to expand...
Click to collapse
Under 1.5 hours seems good.
I just tried my Note 3 charger that is 2A. It charged 10% in 15 minutes where as the charger that came with it took 1/2 an hour. I'm glad I stumbled on this thread. I thought the phone just charged slow, and there wasn't anything that can be done. I've cut down charging time in half.
It's basic math in most respects but most folk don't even bother to look at the specs on the factory Moto E charger - the moment I removed it from the box that was the first thing I checked. As soon as I saw the 5V 550mA rating on it the immediate thought was "Ok, that charger is useless and can remain in the box..." which is more or less completely true. The single piece design also sucks for the most part (meaning it's not a separate USB cable and physical charger) - why Motorola took that design and chose that low ass amperage is beyond me but whatever.
I know they've done everything they can to gut the Moto E and keep it as cheap as possible but I mean really, some things are just TOO cheap: it doesn't even have a proper compass which is kinda stupid.
I owned an LG Tribute recently which is a "low end" Sprint/Boost/Virgin Mobile smartphone with a Snapdragon 400 coupled to an 800x480 display and I bought it for $40 brand new (it's a prepaid phone of course) and even THAT cheap low end piece of hardware has a proper working compass in it.
Bleh... I'm getting an LG G4 as soon as they're available with a black front/bezel and the yellow leather cover). I haven't spent full price on a flagship smartphone in many years but I'm sick of the cheap crap anymore, it's about time I got a damned nice device and didn't look back.
br0adband said:
It's basic math in most respects but most folk don't even bother to look at the specs on the factory Moto E charger - the moment I removed it from the box that was the first thing I checked. As soon as I saw the 5V 550mA rating on it the immediate thought was "Ok, that charger is useless and can remain in the box..." which is more or less completely true. The single piece design also sucks for the most part (meaning it's not a separate USB cable and physical charger) - why Motorola took that design and chose that low ass amperage is beyond me but whatever.
I know they've done everything they can to gut the Moto E and keep it as cheap as possible but I mean really, some things are just TOO cheap: it doesn't even have a proper compass which is kinda stupid.
I owned an LG Tribute recently which is a "low end" Sprint/Boost/Virgin Mobile smartphone with a Snapdragon 400 coupled to an 800x480 display and I bought it for $40 brand new (it's a prepaid phone of course) and even THAT cheap low end piece of hardware has a proper working compass in it.
Bleh... I'm getting an LG G4 as soon as they're available with a black front/bezel and the yellow leather cover). I haven't spent full price on a flagship smartphone in many years but I'm sick of the cheap crap anymore, it's about time I got a damned nice device and didn't look back.
Click to expand...
Click to collapse
After the acquisition of motorola by lenovo, this brand has became a crap. In India it costs 7000 rupees and they gave a 550 mah charger, Pathetic. A simple usb cable connected to a pc/laptop charges the device with 500 mah power. I too kept my moto charger in the box and started searching for a good replacement.
And good luck for your LG G4
There's a Sony charger for ~500 which is supposed to be good, high current and good quality.
Using more powerful chargers makes a huge difference with the Moto E. My 2.1A charger seemingly charges what feels like three times faster or more. But at what consequence? Perhaps this evasive changing is slowly harming the battery cells. Not my chair, not my problem.
I plugged my kenzo into a Mi power bank 2i, 10000 mAh version. It charged for 5 seconds, then stopped charging the battery was at 0%, so I tried rebooting the phone to maybe resolve the charging problem. Now it does not charge from any charger/outlet. I've tried two-three different ones, excluding a laptop and a pc. This phone is my daily driver and I need urgent help. Thanks!
UPDATE
I kept it plugged in for a while in my pc and now a red led blinks whenever I press the power button. What to do?!
AndroRivu said:
I plugged my kenzo into a Mi power bank 2i, 10000 mAh version. It charged for 5 seconds, then stopped charging the battery was at 0%, so I tried rebooting the phone to maybe resolve the charging problem. Now it does not charge from any charger/outlet. I've tried two-three different ones, excluding a laptop and a pc. This phone is my daily driver and I need urgent help. Thanks!
UPDATE
I kept it plugged in for a while in my pc and now a red led blinks whenever I press the power button. What to do?!
Click to expand...
Click to collapse
Kenzo should be charged strictly below 10w.
Which is 5v x 2A = 10w
If ur powerbank has higher capacity than this like 15w or 18 w. Then kenzo will try to draw more power from powerbank. and zener diode will heat . this will short circuit the charging board diode.
I think ur charging board diode is blown which is common problem. It gets blown to protect the device from high voltage or current.
Just open kenzo cover.
Take very tiny flat screwdriver.
Remove charging board.
And careful scratch and remove burnt diode on charging board.
Without damaging anything else in surrounding.
And put the board back. It will start charging
And never ever use mi bank for kenzo. Only use stock 5V 2A charger.
---------- Post added at 09:53 AM ---------- Previous post was at 09:48 AM ----------
Check this thread.
https://forum.xda-developers.com/redmi-note-3/help/rn3-pro-charging-charging-board-t3671977/page2
I have posted pic of zener diode location.
Dont remove zener diode from mainboard.
Only remove diode from charging board.
In my case i had to remove the one from the mother board too. Some months later (charging only on 5V charger) the phone died anyway, started with the red light issue until it didnt boot anymore.
Black_Stark said:
Kenzo should be charged strictly below 10w.
Which is 5v x 2A = 10w
If ur powerbank has higher capacity than this like 15w or 18 w. Then kenzo will try to draw more power from powerbank. and zener diode will heat . this will short circuit the charging board diode.
I think ur charging board diode is blown which is common problem. It gets blown to protect the device from high voltage or current.
Just open kenzo cover.
Take very tiny flat screwdriver.
Remove charging board.
And careful scratch and remove burnt diode on charging board.
Without damaging anything else in surrounding.
And put the board back. It will start charging
And never ever use mi bank for kenzo. Only use stock 5V 2A charger.
---------- Post added at 09:53 AM ---------- Previous post was at 09:48 AM ----------
Check this thread.
https://forum.xda-developers.com/redmi-note-3/help/rn3-pro-charging-charging-board-t3671977/page2
I have posted pic of zener diode location.
Dont remove zener diode from mainboard.
Only remove diode from charging board.
Click to expand...
Click to collapse
hi bro. im using xiaomi quick charger 2.5A~5v, 2~9, 1.5~12, since 1 month ago.
amperage is 2100 and temperature is up to 45 centigrade that shown by Ampere app, while charging.
do you think the issue that you are saying will be happen to my phone eventually?
the icon of quick charge(spark rounded by circle) appears on statusbar and the led is twinkling, so i guess the phone is compatible with the charger.
kenzo 3gb
xiaomi.eu rom
agni kernel 12.3
This phone has firmware bug. Hardware is limited to 5V, but Xiaomi made a mistake in firmware (not in the ROM) and enabled charging at 9V and 12V. So if you charge with QC , V is not limited to 5V by firmware and Zener diode on charging port or/and motherboard blows away, and You will have charging problem.