Is anyone aware of the existence of those ?
Mid July, the tablet just froze, and I had to hold the power button for 40 secs to get it to shutdown.
Upon boot, I got stuck on the Amazon logo. So I tried wiping the entire thing using the recovery menu, with multiple mounting errors, and the process failed.
I didn't think much of it at the time, since I still had access to the recovery menu.
But now, it won't even go there, the screen stays black.
I opened the tablet, I know for a fact that the battery have voltage, and pressing the power button still do something since I'm able to read voltage at different test point that doesn't show activity prior to pressing it.
Also, using a USB charger, I get the 5V in, and the battery do charge, but very slowly.
At this point, the thing is a dead weight and I'm willing to use it for testing purposes.
THanks !
You must show the motherboard of your Fire tablet.
Here's the requested pictures.
Do I need to remove the heatshield to get the chips information also ?
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tharouxQC said:
Here's the requested pictures.
Do I need to remove the heatshield to get the chips information also ?
View attachment 5415295View attachment 5415297
Click to expand...
Click to collapse
tharouxQC said:
Here's the requested pictures.
Do I need to remove the heatshield to get the chips information also ?
View attachment 5415295View attachment 5415297
Click to expand...
Click to collapse
Charging ic problem ... check charging ic if temperature is too high then try to clean and reball ic..
Related
A'ight, so i opened my good old' Prophet today.
I am 50% sure that the battery thing thangy on the motherboard (see pic) is broken.
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However, it might also be the battery, i have two batteries, one is the one that came with the Prophet and one is a cheap battery i ordered from Dealextreme.
I do know that the cheap battery is dead, but the other one (I did some testing with it, it shows up at 1.4V at my multimeter) i'm not sure if it is dead.
The phone has been like this before:
It randomly worked, randomly turned off, it wouldn't work for like 10 days, then when i put the battery in again it worked.
It kept doing that until it died completely.
Any suggestions?
I can't understand on photo. A battery pin is broken? If the problem is broken pin, a watchseller or jeweler can fix it. They have the right equipment to work with small things
zephyri-xr said:
I can't understand on photo. A battery pin is broken? If the problem is broken pin, a watchseller or jeweler can fix it. They have the right equipment to work with small things
Click to expand...
Click to collapse
You think they will fix this?
I would try to get a new (third) cheap battery.
Or try to re-animate the cheap one (dangerous, forbidden, but works often for me: open battery casing, unsolder LiIon-Cell, reload with Lab power supply to around 3-3.8 V (never > 4.2V!!!!), resolder, put in Prophete, start charging....)
The pins look ok. 1.4V for LiIon is below the deadly shutdown value!
TS
OK, maybe my answer is a bit late...
I am in dire need of help from the hardware experts here. My cell phone was damaged from a power surge and it overheats while draining the battery within minutes. I opened the phone and i found the following part broken but i am not sure what it is and how to replace it. Can anyone identify it?
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https://docs.google.com/file/d/0B3EI2JNLcQMxTEtkb3VFQnZ2N3M/edit?usp=sharing
giol said:
I am in dire need of help from the hardware experts here. My cell phone was damaged from a power surge and it overheats while draining the battery within minutes. I opened the phone and i found the following part broken but i am not sure what it is and how to replace it. Can anyone identify it?
https://docs.google.com/file/d/0B3EI2JNLcQMxTEtkb3VFQnZ2N3M/edit?usp=sharing
Click to expand...
Click to collapse
Your Cell phone?, if you don't mention brand and model, how does anyone know what you are talking about?
Check this out! You , YES! you are an " Android ". Not your phone but U.
You Must watch this documentary concerning your privacy Terms & Conditions we had agreed to, by using a PC or Smartphone
How to say Thank you? If you find any post helpful on XDA, click on their Thanks button
If you are using XDA App or Tapatalk, long press on the post and select :good: Thanks
Its easier to give "Feedback" in this manner than make an additional post.
Sorry i was under stress, the phone is Xiaomi Mi-2s.
I have one a friend has asked me to look at.
It is totally unresponsive
I do not know what version of the A7 it is, as I see on the forum headers, there are 2 x A7 varieties, A7 10 and A7 30.
There is no sticker on the rear, and it will not start.
It has been charged over 12 hours with correct charger.
Have tried power/volume up plus power volume down combinations, no go. Tried holding power on for 30 seconds.
Screen shows no indication of starting, no vibration motion, nothing.
I took the back off, removed the battery clip as seen on many tutorials, reattached, still no go.
Multi meter shows battery at 3.1v storage.
PC (Windows) does not recognise the tablet is attached when connected to pc...nothing happens at all on the pc or tablet.
Any guidance please, as it is well out of warranty.
Thank you
Hi,
Still no go with this.
I am trying to determine whether in fact the usb charger point is actually supplying power to the unit, thinking there may be a problem with the adapter on the motherboard?
I have tried many chargers, all with no success.
This is what it looks like where you connect the power cable to the tablet, and I was wondering if someone could tell me, what points can I put a multimeter on the correct areas to see if the connector is my possible culprit.
Can someone suggest some locations, what outputs it should display?
Battery is a L1CP3/87/100 L13D1P31 Li Polymere Charging Limit voltage 4.35VDC Capacity 3450 MaH/13.1wH. I am using a 5V charger and cable.
Many thanks
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My ZE553KL (I use it as a home device control, small tablet) keep loading/reloading for 3 hours now. I CANNOT SHUT IT DOWN. everytime I have this vibrate boot, ITS SUPER ANNOYING.
It show the bootloader then reboot, then show the bootloader and so on. Buttons are unresponsive.
Only think I can do is press up and get to screen number 2 for exactly 6 second (my computer then recognize it).
I cannot remove battery (hello soldered battery). or shut it down, I guess at some point It will drain battery but.
I have no idea what is happening, please help?
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Ouch
Play with it. Proper button sequence and timing is everything. It's easy to not hit the right button at the exact moment. Allowing the battery to auto shutdown may break the cycle. Don't attempt to solder the battery without a good iron and skillset. You need to be fast about it.
If the OS is pre Pie it's suspectable to rootkits that require a reflash to erraticate.
A hardware failure is also possible.
A bad coded 3rd party apk can also boot loop you. That's worse than a normal boot loop though.
It's definitely corrupted... hopefully someone here who has seen this before and/or knows more about that line of phones advanced troubleshooting can help you.
for thoose who have drain battery issues this can be the problem
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btw i cant find this on internet...something compatible?
Bruno41 said:
for thoose who have drain battery issues this can be the problem
View attachment 5522933
Click to expand...
Click to collapse
whats the problem here?
xtcislove said:
whats the problem here?
Click to expand...
Click to collapse
phone was draining current when totally off...like 460ma i toke appart and test the capacitors and components next to the ic were all shorted apply freeze spray to make sure and immediately that ic warm up, i remove that ic and shorts gone so im guessing that was the problem gonna replace see if works properlly
Bruno41 said:
phone was draining current when totally off...like 460ma i toke appart and test the capacitors and components next to the ic were all shorted apply freeze spray to make sure and immediately that ic warm up, i remove that ic and shorts gone so im guessing that was the problem gonna replace see if works properlly
Click to expand...
Click to collapse
btw toke me a while to find the manufactor( https://www.awinic.com/Public/Uploads/uploadfile2/files/20200515/20200515145039_5ebe3bbf4b71e.pdf) of this ic but i want to know if there is something better(compatible) like texas instruments?
I know this is a little off topic... But seeing a post for the OP8Pro with a 2022 date on it is refreshing! Been searching for days for information on how to flash a ROM/TWRP and/or ROOT and most posts are from 2020. I was beginning to think the device/projects were abandoned!
While on the subject, if anyone has recently and successfully accomplished any of the things I mentioned, would you please share? I have over a 100 tabs open right now from all the bricking I've had to come out of over the last 5 days!
Thanks!