It appears there are already multiple H/W revisions available of the Lumia 800. I had an issue with a loose/noisy camera button. The new phone appears to be a newer H/W revision, but I'm not sure. Which revision do you guys have?
112.1402.2.3 here - shouldve noted this down when I took my other phone in.
Buttons seem fine here - the power button was loose on the one that I just returned, but thats cos I dropped it
mine to is 112.1402.2.3 buttons are good though battery is not great but not as bad as some describe so unsure if an issue or just to high expectation
lumpaywk said:
mine to is 112.1402.2.3 buttons are good though battery is not great but not as bad as some describe so unsure if an issue or just to high expectation
Click to expand...
Click to collapse
Indeed. I am going to test the battery on this one.
Thing is, I got the replacement from vodafone due to battery issues, and the numbers on the phone seemed to be the same batch, so pointless really.
Would be good to see if someone else with a different hardware revision had good battery life, or same with terrible etc.
lumpaywk said:
mine to is 112.1402.2.3 buttons are good though battery is not great but not as bad as some describe so unsure if an issue or just to high expectation
Click to expand...
Click to collapse
Same version for me too. no problem with the buttons although if you lift the side with the buttons up and drop the phone back on to a desk you do hear a bit of a rattle but not too big an issue for me.
As above, battery is OK but could be better. 3G manually getting switched off until they issue a wifi priority fix.
112.1402.2.3
The buttons are normal
prowede said:
112.1402.2.3
The buttons are normal
Click to expand...
Click to collapse
Same here and battery life ok...
Also 112.1402.2.3 here
Buttons ok
Battery ok *
*) battery drain is comparable with HD2 running WM6.5
Here 112.1402.2.3, Lumia branded 3 Italy.
Battery isnt so bad...but....sux!
112.1402.2.3 here from telekom.de
camera button has different stroke than other buttons but I feel this might be connected to button-autofocus.
Regarding the battery - I am very cautious with it, never leave it connected to charger overnight - I try to charge up to 99% and disconnect.
3 full charges done so far and I am able to live with it throughout the day (with TOGFLE installed and disconnected bluetooth).
I noticed though, that compared to my previous Omnia7 battery is much worse...
112.1402.2.3 here.
(o2.de, simlock free, from China (box sticker))
Loose/noisy camera button as well + cracking under the left side of the screen (under soft pressing).
Ah, I guess it's not H/W revision related then (although I am almost certain my original one was an earlier revision, should've noted it down). Well, all in all, I'm happy with my replacement, added bonus is that this one is completely unbranded. Originally the shop I bought it from stated it would only have Vodafone branded (but simlock free) sets from Nokia until January. To my surprise when I exchanged the one with the loose camera buttons, I got an unbranded one in return.
Looks like battery life is better on this one too.
Related
do all Lumis 800 have this bug?
http://www.youtube.com/watch?feature=player_embedded&v=DXlvh-Rz9j0
http://discussions.europe.nokia.com...-Strange-UI-Behavior-after-Touch/td-p/1221503
The one I received yesterday doesn't have this issue.
Mine does but only with the charger plugged in. Try plugging in your charger and open up a webpage, try holding down on some text until the cursor pops up and see if it shakes about.
I did notice this a few days ago. But it stoped behaving this way a few days ago and now everything works fine.
mickfarr said:
Mine does but only with the charger plugged in. Try plugging in your charger and open up a webpage, try holding down on some text until the cursor pops up and see if it shakes about.
Click to expand...
Click to collapse
Yep, just checked mine plugged in and it does it. Seems a lot of phones get digitizer issues when plugged in, you'd think they'd have isolated the cause by now.
Rusty! said:
Yep, just checked mine plugged in and it does it. Seems a lot of phones get digitizer issues when plugged in, you'd think they'd have isolated the cause by now.
Click to expand...
Click to collapse
I don't seem to be able to do it. As soon as I leave my finger for 2-3 seconds it enter tile relocation mode.
Scroll first
The new 12070 update is available here. It is confirmed unbranded. You can update any Lumia 800. It improves battery, fixes hardware keys and also fixes the touchscreen-issue described in this thread.
Ciao,
Heathcliff74
EDIT: OOPS!! Spoke too soon! Touchscreen issue is back!
It's a grounding issue. How bad it is can depend on the humidity in the room and if the phone is plugged in our not.
It affects all capacitive screens to a degree, just some companies are better at masking the effect. It depends on how good your touchscreen controller is, and nokia's isn't the best.
Yeah, mine does this often. Every touchsceen phone I've owned does it to some extent, though the lumia seems to do it more frequently/worse.
Sent from my Lumia 800 using Board Express
My new Lumia 800 arived yesterday and first impressions are very good. I've got a slight bug, when i scroll up or down in a list of items and then hold my finger on the screen, the list jitters up and down very slightly as if it can't work out where my finger is. Does anyone else have this problem?
EDIT: I've uploaded the videos to show what I mean.
Jittery screen with charger attached
Jittery screen at end of lists with no charger attached
yeoldgreat1 said:
My new Lumia 800 arived yesterday and first impressions are very good. I've got a slight bug, when i scroll up or down in a list of items and then hold my finger on the screen, the list jitters up and down very slightly as if it can't work out where my finger is. Does anyone else have this problem?
I'll try to get a video of it to make it a bit clearer.
Click to expand...
Click to collapse
I have only noticed this bug in some places when you are at the beginning or at the end of a list. For me to replicate the bug I have to scroll further so that the elastic effect comes in effect. So for me that small bug is pretty much never noticable. Just noticed it by chance. It never happens in the middle of a list for example. Just at the extreme ends when swiping further so the elastic list effect is applied and then hold my finger still.
dannejanne said:
I have only noticed this bug in some places when you are at the beginning or at the end of a list. For me to replicate the bug I have to scroll further so that the elastic effect comes in effect. So for me that small bug is pretty much never noticable. Just noticed it by chance. It never happens in the middle of a list for example. Just at the extreme ends when swiping further so the elastic list effect is applied and then hold my finger still.
Click to expand...
Click to collapse
Mine happens anywhere in a list. It seems to come and go though so I'll see how noticeable it is over the next week and if it gets worse then I'll take it back for an exchange.
I've noticed that too. But yesterday I recived the 11500 firmware update and now I'm not able to reproduce that anymore...
Gahgah said:
I've noticed that too. But yesterday I recived the 11500 firmware update and now I'm not able to reproduce that anymore...
Click to expand...
Click to collapse
I've not had a chance to update the firmware yet so I'll give that a try.
Gahgah said:
I've noticed that too. But yesterday I recived the 11500 firmware update and now I'm not able to reproduce that anymore...
Click to expand...
Click to collapse
I have a german t-mobile too. Haven't gotten the firmware upgrade yet though. Did you just get the update in Zune or did you do the "disconnect trick" to get it?
I can't replicate this on my Pink Lumia 800 with 11500...
I saw it on a video somewhere though before I bought it, so I was a bit nervous... But like I said... No such problem for me.
Hey guy. I just got mine from Nokia. The first thing I found out that the screen is flicking every where . Still on firmware 11451. So it seems like the firmware update will fix this problem. It does not really affect much, but I hope I could get the new firmware as soon as possible.
I've only had the issue when my phone is plugged in, and it is still present on 11500.
Rusty! said:
I've only had the issue when my phone is plugged in, and it is still present on 11500.
Click to expand...
Click to collapse
I haven't tried replicating it with a plugged in phone yet, I'll get back to you.
I've seen this problem before. It's a problem with the touchscreen controller, a grounding issue. It's mainly seen when on AC power, although this effect can be mitigated with a better power adapter. They might be able to fix it in software but it's a hardware issue.
Is nokia using a different controller than other companies for some reason? This issue is non existent on the majority of touch screen phones (I.E. the controller is built to work around the problem).
I often use an HTC A/C adaptor, and the jitter is still there.
Rusty! said:
I often use an HTC A/C adaptor, and the jitter is still there.
Click to expand...
Click to collapse
A good charger (which the HTC might not be), with a ground pin, can hide the problem but the only real solution is an algorithm that 'hides' the effect.
All capacitive touchscreen phones have the same basic problem, they've just programmed the touchscreen controllers so you never see it.
Rusty! said:
I've only had the issue when my phone is plugged in, and it is still present on 11500.
Click to expand...
Click to collapse
That's why it seemed to go away for me. It only does it inthe middle of a list when the charger is plugged in! It jitters around at the top and bottom of lists without a charger.
I've uploaded videos in the 1st post showing the screen bugs.
I contacted Nokia Support about the issue and they replied with a list of things to try.
A. Reboot your phone.
B. Reset the device.
C. Hardware reset.
D. Update software
If none of those work then you can send it to them via UPS and they'll look at it.
http://www.nokia.com/gb-en/support/troubleshooting/warranty?c=1
Seems like there is a problem when a charger is connected for me aswell, but only sometimes...
When I first tried it I couldn't even unlock my phone... But when I charged it last night it was completely fine without any jitter at all... Any idea why that is?
I used the same charger (Lumia original) and the same wall outlet and the same extension cord (between outlet and charger).
It's a charge/grounding issue. The screen detects changes in charge, if the ground level is changing then the measurements become erratic leading to the hitter. If the grounding is good then it is fine. It could just be that you aren't as charged as normal (maybe the air is more humid?)
Well... It's about 10c colder outside when I charged this time than last time...
Just a thought, do all Lumia 800 phones suffer from this problem or is it just a sporadic issue?
Hey,
I like the lumia 800 a lot and I've been dying to get it...but I must admit Im a little disappointed about the loose buttons or loose parts inside...battery and etc
Can you guys share the H/W revision of your lumia if you don't have any problems with it?
Thank you very much
112.1402.2.3
Bought from T-Mobile Germany.
Seems to be fine, so far.
112.1402.2.3 (which I suspect is the only revision at the moment).
Came direct from Nokia in Helsinki; very well built. No problems with screen or buttons, doesn't rattle, feels solid.
The one thing no one compalints (Even the staunchest apple fanboys) is the build quality of the lumia.
Unless you get a defective piece by bad luck there is nothing to worry about the build quality or materials used in this phone
Thank you all for replying, i got the phone 112.1402.2.3
the camera button is still loose but I love this phone so much i got used to it
no other problems other than that...battery life is good
next big thing = jailbreak
cheers
112.1402.2.4
T-Mobile Czech Republic
Battery life is good,no problems with screen or buttons..etc
uiqjirka said:
112.1402.2.4
T-Mobile Czech Republic
Battery life is good,no problems with screen or buttons..etc
Click to expand...
Click to collapse
yes, 2.4 is latest. Have you tested sound through 3.5mm jack? Is there good bass output?
Also which color it is? Cyan?
Yes,Cyan..sound very good.
I think last number defines color - 4 for Cyan, 3 for Black
1402.2.4
Black here
I do not have test the head sets
But speaker is just ok nothing special
The omnia7 was better
Ok, then my theory failed. It seems that there are really two different version of hardware.
Can you please check quality of sound through earphones, especially on low frequency - bass.
two rezounds....same problem....
After i had the overheating issues and called vzw they insisted to send another rezound...so now I have two here...one with ics and one without....same batteries and everything
They both overheat the same.......EXACTLY the same.....hmmmmm....makes me think about htc devices....and its not the battery thats overheating...its the phone transferring the heat into the battery.
I got just above 51c and thats uh oh temps for battery on both .....absolutely horrid.
I love the phone but now the corp lady I talked to will have to do something about this..
devilsrogue said:
two rezounds....same problem....
After i had the overheating issues and called vzw they insisted to send another rezound...so now I have two here...one with ics and one without....same batteries and everything
They both overheat the same.......EXACTLY the same.....hmmmmm....makes me think about htc devices....and its not the battery thats overheating...its the phone transferring the heat into the battery.
I got just above 51c and thats uh oh temps for battery on both .....absolutely horrid.
I love the phone but now the corp lady I talked to will have to do something about this..
Click to expand...
Click to collapse
what voltage batteries are they? 3.7v or 3.8v
They are both 3.7...the paint on the batteries is melted too from the heat...you can see silver underneath
devilsrogue said:
They are both 3.7...the paint on the batteries is melted too from the heat...you can see silver underneath
Click to expand...
Click to collapse
Well, if you can't get your phone to work, at least now you can use it as a grenade or something of the sort.
hahahhahahaha yes....that would prob work...except I paid a lot of money for it so Ill let vzw do that
Really am curious now what hardware revision those two phones are, if they share common parts, though it is merely speculation on what could be a cause.
Mind looking? It is the P/N code on the label under the battery, last line. Including letter(s) after a space.
Mine sometimes get hot but nowhere near what you are reporting
Sent from my BAMF! Rezound via Tapatalk 2
That isn't too bad. I have seen 130 degrees F before.
Im ok now...they sent me a gnex ...I know Im going to be happy with it ... The vzw tech even agreed the rezound has a crap battery but all is good besides that. Im gonna flash miui on my gnex and Ill be set to rock
devilsrogue said:
Im ok now...they sent me a gnex ...I know Im going to be happy with it ... The vzw tech even agreed the rezound has a crap battery but all is good besides that. Im gonna flash miui on my gnex and Ill be set to rock
Click to expand...
Click to collapse
Hopefully you won't suffer from signal issues that many do with that phone
Sent from my ADR6425LVW using Tapatalk 2
I do hope so too...but they fixed them according to the 4.04 update....I think its 4.04 lol...but they fixed that
They are both part number
99HNU001-00 XA
It really seems funny both devices that I have are pcd 01/04/12
I wonder how long they sat before PCD got them and refurbished........quality control is bad these days.....
devilsrogue said:
They are both part number
99HNU001-00 XA
Click to expand...
Click to collapse
Parts revision "XA" is the designation of all five units I've asked of people so far with extreme heat issues: your two phones, my first one, and those a couple of other users have.
I don't have extreme heat issues with my current "B" revision phone.
Companies change certain parts in the assembly lines over time to improve the product, e.g. make it cheaper to produce or more efficient. Sounds like a quality control issue in XA models that was addressed in B models and up (if any exist past B yet).
I suspect most anybody that has issues with the phone temperature going over 120F/49C and *staying* up there under moderate or light use, or gets to 131F/55C or more has rev. XA and is more likely to complain of overheating.
Disclaimer: I am no expert by any means and this is still all an educated guess at best. Just from personal experience, I could not find any software or firmware difference between my own XA and B models to account for the different performances in handling heat... Which leaves hardware as the cause.
HTC reps have even stated 120F is the max safe operating temp; that is when the green indicator light flashes. A case could be made that the entire XA line has defective hardware and replaced under warranty, if a poll of users should confirm this, or there is enough evidence from persons that have both models and can isolate all other factors.
PhantasmRezound said:
Parts revision "XA" is the designation of all five units I've asked of people so far with extreme heat issues: your two phones, my first one, and those a couple of other users have.
I don't have extreme heat issues with my current "B" revision phone.
Companies change certain parts in the assembly lines over time to improve the product, e.g. make it cheaper to produce or more efficient. Sounds like a quality control issue in XA models that was addressed in B models and up (if any exist past B yet).
I suspect most anybody that has issues with the phone temperature going over 120F/49C and *staying* up there under moderate or light use, or gets to 131F/55C or more has rev. XA and is more likely to complain of overheating.
Disclaimer: I am no expert by any means and this is still all an educated guess at best. Just from personal experience, I could not find any software or firmware difference between my own XA and B models to account for the different performances in handling heat... Which leaves hardware as the cause.
HTC reps have even stated 120F is the max safe operating temp; that is when the green indicator light flashes. A case could be made that the entire XA line has defective hardware and replaced under warranty, if a poll of users should confirm this, or there is enough evidence from persons that have both models and can isolate all other factors.
Click to expand...
Click to collapse
mine is XA as well and gets pretty hot, 115-120. Maybe its time to get an exchange.
Mine got hot on ics but not on gb.. You should just get a replacement and try hboot reset or you should go to the HTC test menu and do a battery test
*#*#3646#*#*
overheating
I just received a certified preowned device and it could fry an egg with the heat it was producing. It also is an xa. One more thing is I couldn't get it a full charge after a whole night. They're sending me another one hopefully it won't be an xa.
Po1soNNN said:
Mine got hot on ics but not on gb.. You should just get a replacement and try hboot reset or you should go to the HTC test menu and do a battery test
*#*#3646#*#*
Click to expand...
Click to collapse
I typed that in on my rezound, (stock/gb/non rooted or anything) XA part number device and nothing happened.....?
---------- Post added at 12:53 PM ---------- Previous post was at 12:52 PM ----------
PhantasmRezound said:
Parts revision "XA" is the designation of all five units I've asked of people so far with extreme heat issues: your two phones, my first one, and those a couple of other users have.
I don't have extreme heat issues with my current "B" revision phone.
Companies change certain parts in the assembly lines over time to improve the product, e.g. make it cheaper to produce or more efficient. Sounds like a quality control issue in XA models that was addressed in B models and up (if any exist past B yet).
I suspect most anybody that has issues with the phone temperature going over 120F/49C and *staying* up there under moderate or light use, or gets to 131F/55C or more has rev. XA and is more likely to complain of overheating.
Disclaimer: I am no expert by any means and this is still all an educated guess at best. Just from personal experience, I could not find any software or firmware difference between my own XA and B models to account for the different performances in handling heat... Which leaves hardware as the cause.
HTC reps have even stated 120F is the max safe operating temp; that is when the green indicator light flashes. A case could be made that the entire XA line has defective hardware and replaced under warranty, if a poll of users should confirm this, or there is enough evidence from persons that have both models and can isolate all other factors.
Click to expand...
Click to collapse
mine is XA and std and ext 3.7 batts and always gets hot after moderate use for 15min or so. i havent even used the "high performance" power settings in months because I don't want the phone to explode!
I have a rev. B phone that overheats and dies pretty damn quick if you use it. Light web browsing would kick it up to 110-120 degrees, and drain the battery in a matter of a few hours games or anything else graphically intense could send it up to 130, and probably even 140 but I pull my battery before I let that happen.
What I thought was weird was my first replacement phone ran pretty badly too, then I stopped by a Verizon store and got my 3.8v battery switched for a 3.7v and my first phone ran a little better, but the replacement ran perfectly, until the charger port broke.
-.- 2 tries later and this phone is running perfectly, refuses to go over 115 under the most intense load, and the battery lasts for awhile. It's a rev. B phone too.
Seems to me you have to get the right voltage battery for the right hardware.
XA with a 3.7 battery on ICS here. My phone gets so hot that after 10-15 of surfing, i put it back in my pocket and my leg starts sweating. 120F+
Although i shouldn't have to, i've learned to just use it in short bursts. Also, i did NOT have the overheating issues with GB. I just stick with ICS because it is easily 2-3 times faster than GB. I just keep a charger nearby.
Also, on GB, my standard battery would last me until I got home from work. On ICS, my extended battery barely makes it until lunch
Hi all,
I had to replace the power button flex board of my i9100, but I made a mistake when soldering, and something shorted and a SMD in the board exploded with a *BANG* and went flying like a bright shooting star. Then came the smell of fried electronics, oh boy, that was horrible! Strangely, I couldn't locate which SMD component exploded, the boards looks fine, even if carefully examined with a 10x magnifier.
I thought the board was completely destroyed. But I fixed the power flex cable soldering, assembled the phone, connected it to the USB charger, and guess what?? The recovery menu appeared, some message appeared and quickly disappeared, and the phone booted normally! Everythting worked: network, wifi, bluetooth, camera, etc. However, the power button didn't work anymore, even now it's properly soldered.
I removed the battery to turn off the phone, but now it doesn't turn on with the button. If I plug it to USB, now it shows the charging battery screen, animated and all, but I can't turn on the phone anymore!
So I ask: does anyone know which SMD components take part in turning the phone on by pressing the power button? I can't find this info in the service manual, but I'm sure it's just a matter of replacing a burnt SMD resistor, capacitor or inductor, since the phone works, I saw it working!
So, does anyone have any info for me, or at least a detailed diagram of the circuitry, so I can find my way into that?
Thank you all in advance!!!
Eduardo
Marcovecchio said:
Hi all,
I had to replace the power button flex board of my i9100, but I made a mistake when soldering, and something shorted and a SMD in the board exploded with a *BANG* and went flying like a bright shooting star. Then came the smell of fried electronics, oh boy, that was horrible! Strangely, I couldn't locate which SMD component exploded, the boards looks fine, even if carefully examined with a 10x magnifier.
I thought the board was completely destroyed. But I fixed the power flex cable soldering, assembled the phone, connected it to the USB charger, and guess what?? The recovery menu appeared, some message appeared and quickly disappeared, and the phone booted normally! Everythting worked: network, wifi, bluetooth, camera, etc. However, the power button didn't work anymore, even now it's properly soldered.
I removed the battery to turn off the phone, but now it doesn't turn on with the button. If I plug it to USB, now it shows the charging battery screen, animated and all, but I can't turn on the phone anymore!
So I ask: does anyone know which SMD components take part in turning the phone on by pressing the power button? I can't find this info in the service manual, but I'm sure it's just a matter of replacing a burnt SMD resistor, capacitor or inductor, since the phone works, I saw it working!
So, does anyone have any info for me, or at least a detailed diagram of the circuitry, so I can find my way into that?
Thank you all in advance!!!
Eduardo
Click to expand...
Click to collapse
Hola Eduardo,
you probably used a too high temperature in the soldering iron.
Google for "56542824-Samsung-GT-i9100-service-manual.pdf" and you will find a good service manual that will guide you on a series of problem.
I doubt that there's a procedure for your specific problem, but you may be able to know what SMD you have to replace.
I wish you luck, and next time make sure that the temperature is low (and eventually use a solder paste!)
robdpi said:
Hola Eduardo,
you probably used a too high temperature in the soldering iron.
Google for "56542824-Samsung-GT-i9100-service-manual.pdf" and you will find a good service manual that will guide you on a series of problem.
I doubt that there's a procedure for your specific problem, but you may be able to know what SMD you have to replace.
I wish you luck, and next time make sure that the temperature is low (and eventually use a solder paste!)
Click to expand...
Click to collapse
Thanks for your reply, robdpi!
The soldering iron temperature was ok, I used a 12W Weller micro soldering iron, temperature was not more than 550F / 300C, and I never leave the iron on the work for more than 3 continuous seconds. The problem was a short between two of the 3 pins in the connector. I noticed it only after the accident occurred, testing with my multimeter.
About the service manual, this is the one I have, and the testing procedures (voltages, frequencies) are all OK when plugged to the USB, but they all fail when I try to turn it on with the power button. And you're right, there's no procedure in the manual regarding this specific problem.
Anyway, I will keep trying, thanks again,
Eduardo
Well, after almost an year, I fixed the phone! I'll write about the solution here, to serve as a reference to anyone who needs help.
I managed to find the electrical schematics of the whole phone. With the information given in it, I noticed the connection between the positive battery pin and the flex power button connector was interrupted. Probably the short circuit I did overheated and blew some thin trace on the PCB and it kind of exploded. So I soldered a thin wire between the battery connector and the power button to replace the lost connection, and the phone is now working again! If anyone needs the schematics, just PM me and I will send it over.
But now, I'm back to another issue the phone already had, even before I did the short circuit: the screen shows horizontal lines, blurring the image. It started after I replaced a cracked screen. Does anyone have any idea if it's software or hardware related? May it be a driver issue? I'm from Brazil, and the screen came from Korea (bought at eBay). Should a korean screen work in my phone? Is it possible to confirm or not if it's hardware or software related?
Any help will be great, thanks in advance!
Eduardo
Post a screen.
Sent from the little guy
gastonw said:
Post a screen.
Sent from the little guy
Click to expand...
Click to collapse
I attached 8 pictures showing how the thing looks like. Please note the banding can't be seen on black background, and it's only horizontal. I used red arrows to show the banding. Vertical and curve artifacts are distortions caused by the camera.
If you pay attention to the file names (which have the time each picture was taken) it's possible to see how the thing gets worse with time. In the last pictures, screen goes completely unreadable, it degrades to an almost uniform bluish white.
I already tried flashing a custom kernel as suggested on another thread, but it didn't help. Already tried stock 4.0.4, that didn't work also.
Thanks a lot for any help.
Eduardo
Marcovecchio said:
I attached 8 pictures showing how the thing looks like. Please note the banding can't be seen on black background, and it's only horizontal. I used red arrows to show the banding. Vertical and curve artifacts are distortions caused by the camera.
If you pay attention to the file names (which have the time each picture was taken) it's possible to see how the thing gets worse with time. In the last pictures, screen goes completely unreadable, it degrades to an almost uniform bluish white.
I already tried flashing a custom kernel as suggested on another thread, but it didn't help. Already tried stock 4.0.4, that didn't work also.
Thanks a lot for any help.
Eduardo
Click to expand...
Click to collapse
i have the same isue with my phone and i have another motherboard , but it didn't work....
ps: my screen is a genuine one
kozimcfly said:
i have the same isue with my phone and i have another motherboard , but it didn't work....
ps: my screen is a genuine one
Click to expand...
Click to collapse
You mean you tried the screen on two motherboards, and it shows the same problem on both? Could you please tell the country of origin of your motherboards and screen? I suspect it may be a hardware incompatibility issue.
In other words: motherboards sold in country X may not "talk" correctly to screens from country Y. My i9100 is from Brazil, but the screen came from a Korean seller at eBay.
By the way, does anyone know if the official firmwares come with low level hardware drivers? Is it possible to "transplant" the video driver from an asian firmware, to a south america firmware, for example?
I know about android phones which changed the wi-fi chip during their life cicle and this transplant used to be made, and worked. I would like to try the same for video.
Thanks!
Eduardo
Marcovecchio said:
You mean you tried the screen on two motherboards, and it shows the same problem on both? Could you please tell the country of origin of your motherboards and screen? I suspect it may be a hardware incompatibility issue.
In other words: motherboards sold in country X may not "talk" correctly to screens from country Y. My i9100 is from Brazil, but the screen came from a Korean seller at eBay.
By the way, does anyone know if the official firmwares come with low level hardware drivers? Is it possible to "transplant" the video driver from an asian firmware, to a south america firmware, for example?
I know about android phones which changed the wi-fi chip during their life cicle and this transplant used to be made, and worked. I would like to try the same for video.
Thanks!
Eduardo
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both of them from belgium
This is either a screen problem or a battery problem.
What happens when you swap batteries?
Sent from the little guy
gastonw said:
This is either a screen problem or a battery problem.
What happens when you swap batteries?
Sent from the little guy
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I have only one battery, so can't swap to test. But could you explain how could the battery cause this problem?
I just measured the battery voltage with a digital multimeter, and it's 4.15 V, fully charged. This is almost a half volt above the 3.7 V it should be. Do you think this may be the cause for all the problem?
Many tthanks!
Yeah, screen might not getting enough juice.
Sent from the little guy
gastonw said:
Yeah, screen might not getting enough juice.
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I did another test: measured the battery voltage with the phone turned on, to check the voltage drop caused by phone load, but it seemed normal. With phone on, battery measured 3.8V approximately, which is a little less than the 4.15V I got without load. The battery indicator shows 75% battery charge. It looks like the battery is behaving well under load.
Anyway, I will try another battery as soon as I can.
Thanks again,
Eduardo
Well, I did test with another battery and the problem persists. Should I give up and consider it's really a screen hardware problem?
Thanks,
Eduardo
My guess was on the battery, I guess I'll take the screen problem then.
You should have it checked it out with a tech guy.
Sent from the little guy
Well, I think I went as far as I could. I replaced all 20 tiny SMD components from the display flex PCB with the ones from the old display, which cracked.
But it didn't work, the problem remains. Now I think the problem lies in the AMOLED screen itself, or perhaps in the main phone board. Who knows if the main board is sending dirty electrical signals to the display?
Anyway, I think I will just sell the phone the way it is, I can't afford spending even more money on this phone.
Thanks for the help, gastonw!
You got it Eduardo.
Sent from the little guy