Moto E4 (I think i bricked it?) - Android Q&A, Help & Troubleshooting

So i'm pretty new to the rooting world. But I unlocked the bootloader and did nothing since. Although yesterday my phone started not turning on and whenever it did, It only stayed on for about 3-4 seconds and then just dies. It's been doing this all day and nothings changed, I should have scammed motorola and just got a replacement without informing them when i contacted support but i was a good boy and that led to nothing. However back to this issue, I'll tell you what happens exactly.
1. I have to remove the battery and then drain all the power from the system.
2. battery back in
3.
A. If i just try to boot normally, it shows "bad key", go's to the moto startup screen and dies.
B. I try to load into recovery mode, "bad key", dies.
4. After i do step 3, 1 or 2 times, The phone then fails to do anything. until i go back to step 1.
Any help please?

Related

X10 won't startup > Bootloop

Hey guys, i bought an x10 yesterday, the seller told me straight up that it wont boot, red led flashes 3 times thats it. (he tried to restore his unit with seus after it randomly crashed). When i met him, i swapped his battery for mine and no more red led but still wont boot. I was able to get it in flash mode so i figured, restore with seus and all would be ok. When i got home, tried restoring with seus and when i got close to the end, it failed. Keeps telling me my battery is dead but when i pop it in my other x10, its at around 80%. So, started flashtool and tried it that way but fails towards the end of the process. Even the new flashtool 3.0 didnt work. Gave up for a bit but then retried. seus failed twice but on 3rd try, it worked. Now, the phone will vibe when i hit the power button, green led flashes and screen kinda turns on but no SE logo, then powers off and restarts the boot (still no SE logo). I put in a full battery and left it that way all night. this morning, red led blinking 3 times again. I changed the battery and it still tries to boot but ends up in a loop. Ive been searching all kinds and no fix is available from what i understand. im really confused atm. hardware issue?
Could be motherboard..
This may not apply to the X10 but my sister's X10 Mini Pro went through a fairly similar issue. The phone was stuck in a bootloop with the SE logo, bootanimation, repeat. No matter what we tried, we could not get it to boot properly. She hadn't made a backup and banned me from doing a repair flash of the firmware so I was trying a load of other options (all the while telling her that the only way out was a flash).
I have an EP900 battery charger so randomly decided to charge up her battery to 100% and give it a try. Boom, booted up perfectly. Used the battery down to 20% and tried to reboot, bootloop again. For some reason the phone doesn't boot without a fully charged battery (didn't try charging it with the phone, only the external charger).
Dunno if this will apply to you, but it may be worth a shot. Otherwise, I'm inclined to think you have a mobo problem. Maybe the seller tried unlocking the bootloader and bricked it?
so.say.we.all said:
Maybe the seller tried unlocking the bootloader and bricked it?
Click to expand...
Click to collapse
Thats what i thought at first, who knows.... Bout the battery, i tried a fully charged one too but no go. Also,tried to repair my phone with pc companion but still wont boot up... out of options, im 99% sure its the mobo as well...
Not sure, what the issue is, but you can try the following:
1. Try charging the battery for quite a while, and forget about the phone for 2 hours, for me a few months back. I slept while xrec was on, and in the morning it was showing me the red light......I charged it for two hours which brought my phone back to life.
2. You can use SEUS to update your phone, which will wipe the entire thing and get you a fresh new GB stock. Then you can play with it.
sudip.h said:
Not sure, what the issue is, but you can try the following:
1. Try charging the battery for quite a while, and forget about the phone for 2 hours, for me a few months back. I slept while xrec was on, and in the morning it was showing me the red light......I charged it for two hours which brought my phone back to life.
2. You can use SEUS to update your phone, which will wipe the entire thing and get you a fresh new GB stock. Then you can play with it.
Click to expand...
Click to collapse
1. Battery isnt the problem, as i have 2 to play with
2. Tried that, but either it fails, or if it does go thru, it still wont boot.
It wont even show the "Sony Ericsson" when its powered up. Can it be possible, the guy played around and messed up the files required for this unit to boot? Is that even possible?
slikk76 said:
1. Battery isnt the problem, as i have 2 to play with
2. Tried that, but either it fails, or if it does go thru, it still wont boot.
It wont even show the "Sony Ericsson" when its powered up. Can it be possible, the guy played around and messed up the files required for this unit to boot? Is that even possible?
Click to expand...
Click to collapse
if you destroy tthe kernel - yes.
Sent from my X10i using xda premium

Phone stuck in bootloop

Good day everyone,
My problem started a month and a half ago, but in a different form. The battery of my Motorola Razr (Non-US) went too low, and it only showed the bright white light whenever I tried to charge it. This is an error code that means that the battery ran so low that it is now in a protective mode that you can only get it out with higher amounts of amperage, using a cable that I don't have myself. I returned it to the store, they sent it to the motorola factory, and I got it back yesterday. Now, it might be important for me to note that I live in the Netherlands; the nearest Motorola factory was the one in Germany. It took a solid 5 weeks for me to get my phone back.
Right, so today/yesterday I tried to turn on my phone, excited to have it back after such a long time. It got stuck in a bootloop. All it does is show the red/white M, with dual core below it. This is the first screen you normally see when you boot the phone. After a second or 5, the screen goes black, only to be replaced by the red/white M, this time without the dual core text. After a while ripples start to show around the M, but without vibrations. The menu buttons also do not light up. Normally the same happens, but it vibrates rather violently and the menu buttons do light it; it means that the phone is booting the firmware.
The phone keeps this up for a few minutes, after which it starts all over again, from the red/white M with the dual core text. It does does indefinitely, until the battery runs out. It doesn't shut down in between, so this takes quite a while. I tried forcing it to reboot with the volume down + power button (which is a hardware reboot), but that just makes the cycle start over again. Very, very rarely (usually after looping for about an hour), the phone DOES go on. However, it soon crashes again, being on between 10 seconds and 5 minutes.
Now here is what I think happened. Before I sent the phone to the factory, I was running an old version of android, still in Gingerbread. I don't know exactly what firmware it used, but it was rather old, maybe half a year at least. However, now that I have it back, I appear to have been updated to ICS 4.0.4. The firmware running on the phone is also new (obviously), version 672.180.41.XT910.NonEFIGSRetail.en.EU (EU for Europe obviously, and NonEFIGS for non English, French, Italian, German and Spanish) as I live in the Netherlands. Now what I figure has happened is that the factory tried to flash my phone to the new firmware after they had fixed the issue, and the update didn't take.
Now, I could obviously return the phone to the store again and have them repair it, but that will take another month. Also, the store is very disappointing to say the least; they will not give me a replacement phone in the meantime, which is very bothersome. So I'd rather try and solve the problem myself.
However, I don't know how to flash 672.180.41.XT910.NonEFIGSRetail.en.EU again. All the instructions or guides that I have found so far only refer to the American version of the phone, or require me to be able to access the phone (turn it on). I can however access the boot menu with volume + volume - power held together, which lets me access the AP Fastboot menu.
Could anyone give me instructions what to do from there? I already did a factory reset, which did nothing to fix the situation.
I did find this link
http://forum.xda-developers.com/showthread.php?t=1837971
But I'm not sure how to proceed with that.
Note: If I'm on the wrong path with trying to fix it all, please do say so! By no means do I want to screw up the situation any further, as I could still have it repaired for free, it just takes a long time and I'd rather not.
Note2: If I am missing any crucial info, please let me know too!
Edit/Delete Message
Alright, so maybe I should modify the title.. I tried using the method in
http://forum.xda-developers.com/showthread.php?t=1837971
But I'm afraid that only made the situation worse. My phone now automatically boots into AP Fastboot, giving the message that the flash has failed.
Now I understand that I should be able to just re-flash it, but I would be very thankful if someone could point me to the right files/procedure, as almost everything I can find is for the US version, and I'd rather keep the EU version with my language pack and all.
Thanks in advance
Resolved Bootloop problem
Hi Dazm;
I had the exactly the same problem and i resolved it yesterday. You need to flash a custom ROM for in order for it to work again, but you battery is to low to do this e.g. if you hold both volume+ - down and keep power button for 10sec and go to fastboot ap, it would indicate this.
So what i did was the extreme lol, i created my own factory cable, I bought a usb data cable cut of the one end (micro usb) stripped the red and black coded wires, removed the back cover of the Motorola Razr XT910, and you will notice at the bottom corner of the phone is a positive + negative - with screws. I connected the red wire to the positive + and the black wire to the negative - and the other end of the usb to my computer. This will charge for 1 hour 15min, once this is done, you will need to download RSD lite 5.7 and install on pc, download stock ROM and flash the ROM with RSD lite and there you go. Mine work 100%, sorry if im not to clear, was in a rush.
arendshp said:
Hi Dazm;
I had the exactly the same problem and i resolved it yesterday. You need to flash a custom ROM for in order for it to work again, but you battery is to low to do this e.g. if you hold both volume+ - down and keep power button for 10sec and go to fastboot ap, it would indicate this.
So what i did was the extreme lol, i created my own factory cable, I bought a usb data cable cut of the one end (micro usb) stripped the red and black coded wires, removed the back cover of the Motorola Razr XT910, and you will notice at the bottom corner of the phone is a positive + negative - with screws. I connected the red wire to the positive + and the black wire to the negative - and the other end of the usb to my computer. This will charge for 1 hour 15min, once this is done, you will need to download RSD lite 5.7 and install on pc, download stock ROM and flash the ROM with RSD lite and there you go. Mine work 100%, sorry if im not to clear, was in a rush.
Click to expand...
Click to collapse
Thanks for the reply! I'm not sure this is the issue though, I can still charge my phone (It's at 100% now), and it says Battery OK in the fastboot menu. However, exactly which custom ROM I need to flash is the main part of my problem, I think.
Interesting, I'm going to have to keep my eye on this thread.
I am experiencing the same thing, after an OTA update to 672.180.41.XT910.Retail.en.FR from GB. I also experiencing a rebooting loop with the occasional boot that last about 5 minutes. Clueless about what to do at this time. Maybe flashing with a fastboot file found here.
Hopefully you can resolve your problem and help me solve mine in the process. Unlike you, it's improbable at this time to have my phone service by Motorola; Moto US won't touch because it has French software, Moto FR would fix the phone (after I cover the service and postage) but will not sent it back to me because I have an American address.

[Q] Galaxy S III crashes, won't boot unless connected to power source

I took Verizon's NC1 OTA about two weeks ago. This weekend, Maps kept locking up, and now that has devolved into the whole phone suddenly dying. No power off animation, just the screen goes black and the phone is off. When I attempt to boot it back up, it'll do the same sudden death bit, sometimes without even making it through the Verizon boot animation. The battery had a strong charge the first time this happened - about 70%. It will fully boot if I connect it to a power source, but it will die again after some active use off the charger. As a result of this, I'm also unable to boot into recovery. I would ultimately love to flash some other ROM as I think I may have corrupted something when I took the OTA. Battery is new-ish (or, more likely, refurbished-ish) - replaced the phone via insurance back in December.
Some additional background: I had my phone rooted two OTA's ago. When I installed the second most recent OTA (I forget which, maybe MC1?), the phone obviously unrooted, but then I also got the "Samsung Custom" boot screen with the unlocked image, which I thought odd considering it was an official OTA.
In summary: I have a phone that is rather useless unless I'm perpetually near a power source. Has anyone had a similar experience, or does any one know what the heck I can do to fix this?
It's alive
So disregard the bulk of that post. Turns out the power problem was a bad battery. I popped in the battery from the old, smashed phone and it worked like a champ.
However, I'm still stuck with the problem of not being able to boot into recovery. I'll get the same Samsung logo with the unlocked logo and "custom" at the bottom, but then the screen will go black and nothing will happen until I let go of the key sequence, at which point it'll finally boot up normally. Thoughts?
Is your phone the i9300 model? If not then ask a moderator to move it to the correct forum for you.
Sent from my GT-I9300 using Tapatalk

Please save me!Phone stuck in a Bootloop,won't turn on to the lock screen or recovery

My phone just randomly started bootlooping and is now stuck in a permanent bootloop that only stops when I pull the battery and then starts right back up if I put the battery in and try turning it back on. I've had it for 6 months now, rooted it with Dirty COW six months ago and it's been completely FINE until just now.. the past few days it has been extremellllly laggy but still worked fine and then this happened out of the blue! I can't get into recovery and because it won't turn on to the lockscreen I can't do adb reboot recovery! Please someone help.
Again, it's rooted using Dirty COW but has been rooted for six months now; I have two batteries for it and I use Nova Launcher which also recently (within past week) started to continually crash and re-ask me which launcher I wanted to use by default, and did it every time it crashed.
Please help me someone! At least to get into recovery so I can get my stuff off!
felekks said:
My phone just randomly started bootlooping and is now stuck in a permanent bootloop that only stops when I pull the battery and then starts right back up if I put the battery in and try turning it back on. I've had it for 6 months now, rooted it with Dirty COW six months ago and it's been completely FINE until just now.. the past few days it has been extremellllly laggy but still worked fine and then this happened out of the blue! I can't get into recovery and because it won't turn on to the lockscreen I can't do adb reboot recovery! Please someone help.
Again, it's rooted using Dirty COW but has been rooted for six months now; I have two batteries for it and I use Nova Launcher which also recently (within past week) started to continually crash and re-ask me which launcher I wanted to use by default, and did it every time it crashed.
Please help me someone! At least to get into recovery so I can get my stuff off!
Click to expand...
Click to collapse
do you have TWRP recovery installed?
there can be two possible solutions
1. go into twrp recovery and factory restore it
2. or connect to LG Bridge on your computer in download mode
zeexhan said:
do you have TWRP recovery installed?
there can be two possible solutions
1. go into twrp recovery and factory restore it
2. or connect to LG Bridge on your computer in download mode
Click to expand...
Click to collapse
What Can i do via LG Bridge? and I keep trying to get into TWRP but it won't let me; it just continues to show the yellow bootloader "Your bootloader can't be checked" or whatever that message is :/
I'm sorry to inform you that it seems that you are another one fallen into the bootloop of death. It is a well known hardware malfunction of several LG cell phone's mainboards.
You can try put your phone in freezer for 5-10 mins (without battery) and see if it restarts for enough time to perform a backup.
Another (much more risky) temporary solution is to heat it with a hair-drier for some minute, better disassembling it and trying not to heat camera zone too much. I honestly advice you not to try this second method, just inform you that it exists.
By the way, those two are only temporary workarounds, your phone is unrecoverable without a mainboard replacement or a professional resoldering of it.
Hope that some minute near the ice will suffice to get your V10 back for recover your data.
Good luck!
felekks said:
What Can i do via LG Bridge? and I keep trying to get into TWRP but it won't let me; it just continues to show the yellow bootloader "Your bootloader can't be checked" or whatever that message is :/
Click to expand...
Click to collapse
With lg Bridge you can restore you phone to it's original form.
and do not try heating or freezing method your phone has a software failure not hardware.
and about that scree show unable or something it shows once you install custom recovery.
if you previously have installed the TWRP then here is the method to get into it
a) pull battery out, and put it back in to make sure phone is completely powered off
b) Press and hold volume down + power button, as soon as phone lights up and shows LG logo release power button for just one second and press again untill you see a hardreset screen
c) on hard reset screen press vol - button on yes and press power button to select yes and do it again on next screen, it will lead you to TWRP Recovery
zeexhan said:
With lg Bridge you can restore you phone to it's original form.
and do not try heating or freezing method your phone has a software failure not hardware.
and about that scree show unable or something it shows once you install custom recovery.
if you previously have installed the TWRP then here is the method to get into it
a) pull battery out, and put it back in to make sure phone is completely powered off
b) Press and hold volume down + power button, as soon as phone lights up and shows LG logo release power button for just one second and press again untill you see a hardreset screen
c) on hard reset screen press vol - button on yes and press power button to select yes and do it again on next screen, it will lead you to TWRP Recovery
Click to expand...
Click to collapse
uh, no his phone is done.This is a hardware failure, its pretty clear.The lag op described is exactly what happens when the phone is about to go into the inevitable bootloop.op's best bet would be to put it in the freezer to salvage data if he needs to.i tried the heat gun method, no go but freezer had my phone up for 5 mins before it went back into bootloop.
thnx
nabilprodhan said:
plzzzz help me........ (LG V10-H961N)
I can't turn on my phone. Unfortunately my phone automatically goes off ,after that it isnt turning on.Sometimes after keeping it refrigarator for a while, it turns on for 10-15 second and goes off.I have tried to enter download mode, but before loading download mode it goes off. Even i cant enter to fastboot mode by removing battery and keeping volume down key.Sometimes, after lot of trying of the same procedure, it goes to blue screen ... there are too much error in the blue screen,also kernel crash . Sometimes i can enter to fastboot mode, but the bootloader is locked . In device manager , it finds----- qualcom hs-usb-qloader 9008. If anyone can fix this, plz plz, let me know ,how to solve this problem.
Click to expand...
Click to collapse
Your phone is gone, your best bet is to call LG, best you can hope for is to explain to them that you recently got this phone, say within last 6 months, and now it is in a bootloop, you may get a replacement, I have already done about 20 of these LG V10 phones that way, they just end up replacing the board in it, but other than that, there strictly must not be any liquid or physical damage to inside or screen or they will charge you for it.
I am not 100% entirely they will still honor the fixing of bootloops due to warranty status, but I stopped sending mine in in December last year, but this is for a defect they admit and not normal wear out that is in the actual warranty coverage.
Never buy an LG phone anymore. Me and my children will never buy again an LG phone.
Sent from my SM-G965F using XDA Free mobile app
Hi try this http://forum.xda-developers.com/showthread.php?t=3770755
I tried it and it resurrected my phone. Good luck
I tried it and it works very well. It resurrected my phone. No bootloop since last night. What I did was :
1st-put electric tape on the cpu and gpu(4 or 5 layers of tape). I tried to put tape and make it to fit the surface of the cpu and gpu.
2nd-I put the pile on the back
3rd-reboot the phone and voilĂ  it's working well till now.
I hope that it can continue like that.
Sent from my LG-H901 using XDA Free mobile app
Sent from my LG-H901 using XDA Free mobile app

Old Z2 Tablet SGP512 Given All It's Got?

As the title suggests I have an old Z2 tablet that has been an absolute work horse for many years. I was using it one night and the Android OS prompted me that the device hadn't been rebooted in 28 days. So after I was done using it for the night I rebooted it. Only, it didn't reboot it just stayed off. I tinkered with it for a while and got it to show the Sony logo but then it just went dark again. The device is rooted and I have TWRP on it. So when I got it to turn on again I booted it into the TWRP recovery. I proceeded to clear the cache and also attempted to make a current backup. However, the backup would fail after running for several minutes. I decided to try backing up to an external OTG USB drive but the device needed to be rebooted to detect that the OTG USB drive was attached. So from TWRP I selected "reboot recovery".
Unfortunately that was the last time it worked. The screen will not come at all. When I hold volume+ and power it vibrates 3 times but still doesn't boot. I plugged it into the charger even though the battery charge last showed at 85%, but with the cable connected the charge light doesn't even come on. I tried plugging it into my computer but it doesn't detect the device has been connects and adb devices doesn't show anything in the list.
I read on a forum to try drying it out with a hair dryer and while the device hasn't ever gotten wet it has been humid here so I figured what the heck. Unfortunately that also hasn't resolved the issue.
Pretty much everything I've tried hasn't worked. Even the red reset button under the top panel just causes it to vibrate 3 times.
The device has been in this state for a week now. I was hoping maybe the battery would die and then I could recharge it, but since it still vibrates 3 times I'm guessing the battery still has a charge.
One thought I had is that maybe the internal storage is either dead or corrupted.
At this point I'm wondering if the device is a lost cause and I should just let it rest in peace or if there's any other solution. Even if there was a way to factory reset it from it's current state that would be better than having it be a paper weight.
Any suggestions beyond what I've already tried would be greatly appreciated. And, yes, I may look into seeing if I can get it serviced however there's definitely no warranty and I don't really want to poor money into it since it's probably time for an upgrade anyway.
Why is my phone vibrating 3 times and won't turn on? - Sony Xperia Z5
When I try to turn my phone on it just vibrates 3 times and does nothing after that, just wondering what the problem could be?? - Sony Xperia Z5
www.ifixit.com
The device vibrated 3 times, that's good, then it is off.
"Sony writes: This is how you force the device to turn off:
Press and hold the power button and the volume (+) button simultaneously until the device vibrates three times."
Did you try to put the device into flash mode after that? I think only a complete flash will bring the device back to life.

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