I have a relative that has a A21 that all of a sudden wouldnt power up, they brought it in to the cellular provider and was told they needed a new battery.
A new battery was installed but this did not correct the issue.
Currently new battery installed, but no signs of life when pressing power button, and also no signs of life if plugged into usb charger.
Where can I start to troubleshoot. Im pretty proficient with troubleshooting as well as soldering. Is anyone out there that can help me get this going again?
All I need to get is the info off of the phone, picture, audio messages etc. there are some messages from siblings on it that have passed away, so Im doing everything I can to try to retrieve any of hte info retained on the phone.
The phone is currently mostly disassembled, I was trying to just test the power button to see if that was the issue, but no luck.
Any help would be greatly appreciated.
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Power port pcb maybe, replace.
Check all ribbon cables, inspect and make sure they are properly installed and no bent pins.
Check battery connection. Is the battery good?
Otherwise a mobo failure may be the cause.
Did it get wet? Dropped? How did the failure start?
blackhawk said:
Power port pcb maybe, replace.
Check all ribbon cables, inspect and make sure they are properly installed and no bent pins.
Check battery connection. Is the battery good?
Otherwise a mobo failure may be the cause.
Did it get wet? Dropped? How did the failure start?
Click to expand...
Click to collapse
Ok, Is there a good resource for diagrams/schematics somewhere that I can reference? I have checked and the battery seems to be good, showing around 3.8v
It is strange because it doesnt look like it got wet at all, and it was not dropped, it's in otherwise excellent physical condition.
Just stopped turning on.
Related
Charging P1000 when off - shows yellow triangle with '"!" with flashing thermometer
Hi All,
After opening my Galaxy tab P1000 to perform a procedure
from a thread in this forum (I will explain the procedure in the end) and closing it back up again.
I have trouble charging my tab.
Charging when off - shows yellow triangle with '"!" with flashing thermometer and doesn't actually perform charging more than
a very low percentage.
Charging when on - doesn't charge more than the current percentage.
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I reopened it and disassembled it and reassembeled it and then it worked again (charger is not faulty) and let me charge until ~40%
and then i got the same behavior as above.
sometimes just pluging and unpluging the tab several times let me have it charging normally but after some time it reverted back to the problem...
The android works and boots but I still have trouble charging.
The phone is not hot or cold. I think I might have done something with the temp sensor when assembling it back again.
Can you please help me with this ? does anyone know where that sensor is ?
Attaching a pic of the problem screen.
The procedure I did was on account of a faulty internal memory module (I removed it from the motherboard so that it uses a partition on
my external sd card as the main internal memory).
Thanks in advance
Still haven't found a solution for this :crying:
I ordered a new battery from ebay after some posts said this might indicate a bad battery - the new one gives me the same temperature problem indication.
I wish some one knew what it means and how i can correct it.
What i did that started showing this error was :
http://forum.xda-developers.com/showthread.php?t=1877585&page=9
Please help...
still trying to resolve this ... anyone ? help ?
i an trying to resolve this and to flash the "no internal memory" method - both with no success .... has anyone seen this kind of indication ?
found solution
Managed to make this disappear by using odin to flash overcome kernel v4.0.0.tar
you can DL it here:
http://www.mediafire.com/download/31elh70r5d9jxxk/Overcome_Kernel_v4.0.0.tar
Yesterday i Installed Latest Schizoid Rom CM10.1 4.2.2 Apr23 version On My TouchPad a.k.a Tenderloin.
Than Flashed The Latest OC Kernel 10.1 by Shumash
Serveral Hours Of Testing got critical Battery put it to charge, the TouchPad Died...<Resulted in a Battery Power Brick.
Left Charging For Several Hours, Tryied all possible Button Combinations
Tried Every Solution on The Forums Exept for Jcullins TPDebrick.
Thought it was too much....
Anyways. Got Tired and Went Back to The Stone Age, & used a Old trick that worked for me Before on a Droid X power Brick.
got a Scapel looking Knife Opened The HP Touch Pad
http://www.youtube.com/watch?v=zD2zGOsh6I8 <How to Open
Removed Screen & Battery. Screws First.
Battery is Glued in all four Corners By sticky Pads Please Remove Carefully Dont want to ruin the huge battery.
keep lifting corners in a circular motion till it pops out.
Than Remove or do this first [Remove Screws on the Hardware Parts Around Battery. so you can remove battery cable, its 1inch long -_-.
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After that Get four Small Safety Pins, Cut them at the loop, with clipers or w.e i used nail clipers.
insert them on the 4 power cable holes, red-red | black,black
Get a USB DataCable or Charger Cable cut the End Split it Find Positive cable Usually color RED and Negative Cable usually BLACK
mine was white... Now Attach the Cable To the Pins { RED WITH RED} {BlACK WITH BLACK}
CONNECT USB TO WALL CHARGER AND LET IT CHARGE FOR 2 HOURS. Well Thats What i did.
Revert the Procress turn it back on, boot to ClockWorkMod. Wipe All Install Fresh Android Rom. & Wala That should Work
If This Helped Press Thanks or W.e. Pce
Samsung Galaxy S4 Active water damage
- charging paused, battery temperature too low
- menu key not working
- cannot use flash temperature is too low
AFTER REPLACING THE WHOLE ASSEMBLY ISSUES SOLVED!
(Flex Cable Charger Port Front Keyboard & Mic) see image attached.
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Buy spare part
wrektime said:
Samsung Galaxy S4 Active water damage
- charging paused, battery temperature too low
- menu key not working
- cannot use flash temperature is too low
AFTER REPLACING THE WHOLE ASSEMBLY ISSUES SOLVED!
(Flex Cable Charger Port Front Keyboard & Mic) see image attached.
View attachment 2792397
Click to expand...
Click to collapse
Thanks for the tip, I have the exact same issue and looking to find the spare part.
Do you have a link where I could order them ?
Thanks for your help!
My AT&T Samsung Galaxy S4 has the same problem. I bought me a replacement part today. I Will update later if it fixes my problem!
wrektime said:
Samsung Galaxy S4 Active water damage
- charging paused, battery temperature too low
- menu key not working
- cannot use flash temperature is too low
AFTER REPLACING THE WHOLE ASSEMBLY ISSUES SOLVED!
(Flex Cable Charger Port Front Keyboard & Mic) see image attached.
View attachment 2792397
Click to expand...
Click to collapse
A lot of times this is the case. Sometimes you may just have too much lint build up where charging port is on phone. Simply get something like a needle or paper clip and lightly dig some of the lint out. Worked for me with my galaxy s4. Hope this helps
Hi everyone. I friend gave me his old kindle he broke and was wondering if its possible to fix it.
Here is the modelnumber = X43Z60
all i know is that he tried faffing about with it and now it has a red screen (wall of fire???) and the battery is dead and i also cannot charge it.
When its plugged into a charger the circuit board gets warm.
I read that If i can get it to charge i will need a fastboot cable which i have to re install a new rom
i have pictures
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Thank you in advance for any help you can offer me
Dave
Can anyone at least suggest a way i can charge the battery without it charging through the kindle? If i can power it up then I should be able to follow instructions on how to re install the OS
creativesamurai1982 said:
Can anyone at least suggest a way i can charge the battery without it charging through the kindle? If i can power it up then I should be able to follow instructions on how to re install the OS
Click to expand...
Click to collapse
Okay, well if you can figure out how to bypass the port and charge the battery directly then try that. If it boots up, how is it not charging? second and last question, do you own a factory cable?
please quote me so I get the notification of your reply.
Galaxyninja66 said:
Okay, well if you can figure out how to bypass the port and charge the battery directly then try that. If it boots up, how is it not charging? second and last question, do you own a factory cable?
please quote me so I get the notification of your reply.
Click to expand...
Click to collapse
Hey, the only way I think I can charge the battery is by removing it from the device and chopping up an old USB cable and putting the two wires directly into the battery. If watched numerous videos on YouTube. And I have a factory cable I made for a different Kindle. The Kindle won't do n e thing. If I plug the normal charger in the underside of the Kindle gets warm but that's about it. No flashing lights, no charge icon on screen. Thank you for you're reply.
I have a mi a2 and it has some problem with charging. Whenever i connect it to a charger, it charges for a second, then stops and then starts again. Because of this, i cannot charge my phone when its on. To charge it, i have to turn it OFF and then it charges VERY slowly and gets to about 80% overnight after 8-9 hrs.
I have tried charging it with different cables so its def. a phone issue.
I know its not a software issue because my phone just got the android 10 update and its still not charging.
After reading some forums, i figured out i should replace the USB port as its the most fragile part. So i bought a usb flex port from ebay and replaced the original port, but then the phone stopped charging completely.
It still kept doing the stupid charging-not charging cycle, but when powered off, it couldnt charge.
Im not sure now if I should buy battery from ebay or not because i think i got ripped with the usb port.
BTW i live in Denmark and i have imported an Indian model and there are absolutely no shops here that repair Xiaomi phones.
What should i do? Suggestions?
Edit: im not sure if this is related or not, but i started getting the problem after i tried charging the phone with a pixel fast charger
This is definitely the hardware problem.
Either your cable , voltage or power related circuits.
However, I don't think it's battery problem.
Consider your situation, I think find a electrician, or electrical engineer (who can deal with electrical board) is highly recommend.
Sent from my Mi A2 using Tapatalk
In my MI A2 device, I've been using custom rom and whenever i plugged in my device there is no charging when phone is on so I've to switch off the phone to charge it and when i connect it to laptop it is not showing as well. I've done everything in my knowledge to remove this problem and atlast I've to roll back to stock firmware of device running on Android 10 but that problem is not gone completely. In status bar there is a permanent pop up of ''Charging connected device via USB" and when i plugged my device I've to switch it to 'This Device' from 'Controlled Device' in USB Preferences. It is not charging normally when i plugged in.
please share any answer regarding that I've done everything but can't fix it.
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