My battery must have swelled up at some point so I decided to change it. It was pushing the back off my phone and wireless charging would not work. Otherwise I would have left it alone but now my front camera doesn't work. I triple checked all the connections and did a factory reset. No go. The camera works on other apps like Snapchat but it's b&w only. It looks like it's night vision and it if you cover the sensor to the right of the ear speaker it dims like you turned off a flashlight.
Any suggestions ?
I'm ordering parts but not sure if that will fix it. (It's the camera and sensor's)
I had my 4xl battery fixed from Ubreakiit and they had to replace a bunch of the device itself.
A swelled Li is a battery failure. Replace immediately a the first sign of swelling.
Once a Li gets below 80% of its original capacity it is more likely to fail, replace it.
Other signs of a battery failure are a sudden change in capacity, any cover or display bulging, and/or erratic fast charging.
A failed Li can take out the display (it normally sits right on it) even the whole phone especially if you suffer a thermal runaway. The tolerances are tight so there's very little room for expansion without pressing on critical components.
Make sure you get the correct parts for that model variant. Carrier phones can use different components that are incompatible with other variants of that same model.
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When connected to charger:
-The red LED flashes, and it does not react to the power button, I tried every combination, no use
When not connected to charger:
-Nothing works, it does not show even slight signs of life
The problem happened when I was replacing the front camera because the camera stopped working. The next thing was it won't turn on. It may be a faulty camera that caused a short circuit. I was not sure, so I opened it, tested the battery with multimer, it did not provide any output. Then I checked the pins on the motherboard, and it showed 1.12V exactly.
I know from other phones that the voltage that motherboard gives is usually higher, around 4V so I'm not sure if the issue is on the motherboard or in the battery itself. The weird thing is that the battery was charged, around 50% and now it does not even react.
Any help will be appreciated.
EDIT: I found the problem on my battery flex cable. The service that worked on my phone before must have damaged the flex and it was making direct contact on the motherboard. Luckily it caused the battery circuit to fail and not to damage the motherboard.
Hi all.
I got my M8's display broken and tried to fix it on my own, because my trusted service didnt.
After reassembling the Phone with the new display it didnt power on. Plugging the recharger turns the display on and the screen shows an empty battery logo with a lightning flash inside, but no green beam inside. The orange LED keeps flashing, not glowing.
Holding power/vol-up/down buttons make the display and LED turn off and on again. Shortly before the display turns off, the orange LED starts flashing green once for an instant.
Mounting my old broken display afterwards (which is wasted now) made my phone boot again once.
I'm not sure if this is conflicted to the battery, as I found the same synonyms according to a total discharge. When disassembling the phone I might have damaged the battery slightly.
Is there a way to functional check the battery?
I connected a resistor and a LED to the galaxy s5's batteries contacts and it illuminated, while the M8's battery is built completely different.
My MO was:
Firstly I disassembled my phone according to this video (its german).
After taking out the battery, I complete disassembled the front case, including camera/sim/sd card-unit etc. (the video didnt show disassembling that unit).
I bought a new front case unit including display, digitizer etc.
So I mounted all units on the new front case.
I'd be really encouraged! Thanks for help.
EDIT
I replaced the battery and the display once more. It works fine now.
I Have the same issue, did you buy a new battery?
Hi folks,
I have been sitting my friend's phone around for a while.
I somehow made it to unseal the phone, I guess by using an air pressure gun.
My approach was to open it up, clean it out and try to restart it.
Mostly with one approach, making a backup of the pictures.
Sadly, I was not patient enough and partly destroyed the screen.
But after is resembled most parts lossy, I was able to restart the phone.
As the screen was too hard damaged, and it took a while till I got a new one, I took the phone aside.
New screen has arrived after a while but shockingly the screen doesn't turn at all even with the old screen.
As the battery was deeply discharged, it charged it a little janky and messed up the port.
But still not working.
So my last ideas was to tried starting it without the battery, which didn't work.
So here is my question, will it start without the battery in at all or the other way around, could a broken battery terminal be now the main cause for not getting the phone started.
The alarm is still working as well as the vibration and the indicator LED which stays more or less only red.
It needs the battery to boot up. Without the battery the phone likely won't have enough current to boot.
You use heat, anhydrous isopropyl alcohol, plastic picks to get most of these phones rear covers off. Never compressed air.
I would guess that it is not the current, more the basic system how the battery management is realized.
No the compressed air wasn't the reason, it was more the reason for the water leakage.
As the rubber gasket got misaligned with using it to clean up the usb c port.
The display got cracked because I assumed the display would be more narrow like I was used to with amoled ones.
So my spatula dive in between the LCD and the backlight the rest was made by my manual force.
I think I will order a spare battery and will retry it..
Make sure everything is completely dry. Leave battery disconnected until dry.
Do not expose LCD displays to any solvents including isopropyl alcohol as they will poison it.
Things happen... the second time is always easier.
The battery is a cheap fix if it works.
I have an old Galaxy A71 (Model SM-A715F) that I dropped around about 6 months ago, to which the phone completely stopped working.
I am aware that AMOLED displays tend to die entirely if they are shattered, however the device itself (not just the display) is completely unresponsive.
It appears to take charge when connected to a portable charger (seen by the LEDs on the front of it illuminating whilst the phone is connected), however holding down the power button and/or volume buttons does not cause the boot vibration. And there is no visible feedback on the screen.
The phone is running completely stock firmware (Android 11, One UI 3.1(?), I think), which worked fine before I dropped it, so it cannot be incompatible/broken firmware.
I have replaced the charging port assembly, as I thought that may be the issue, however I fear that the device may be completely toast, which would suck because I wanted to retrieve any un-synced photos from it.
Any help on getting this device to boot for long enough to get any photos off will be GREATLY appreciated!
Any drop sufficiently hard enough to damage the display can damage the mobo. BGA chipsets are especially intolerant of board flexing and high G loading. Inspect for loose connectors and mobo damage. A recovery service may be able to savage the images. Personally I would write them off.
blackhawk said:
Any drop sufficiently hard enough to damage the display can damage the mobo. BGA chipsets are especially intolerant of board flexing and high G loading. Inspect for loose connectors and mobo damage. A recovery service may be able to savage the images. Personally I would write them off.
Click to expand...
Click to collapse
Yeah, it wasn't a "bad" fall, but it must have still been enough to damage it. But it's weird how the device warms up a little as if it's charging normally though, if the main mobo is broken.
NotShadow said:
Yeah, it wasn't a "bad" fall, but it must have still been enough to damage it. But it's weird how the device warms up a little as if it's charging normally though, if the main mobo is broken.
Click to expand...
Click to collapse
Power section is probably intact. May just be a loose ribbon cable, that's common.
Always use a good case. My N10+ would have been KIA long ago if not for its Bolt case. It's always in it. It's a very slippery fish without it
I just replaced the screen (cracked) and charging port (worn out) on my Mi Pad 4 Plus.
To do this I had to remove the battery and unfortunately one of the stretch glue strips snapped off. So I had to use a metal feeler gauge to get the adhesive off the underside on one side. I was careful and visually the battery looked fine on removal. I didn't damage the battery shell and it didn't bend/crease.
After fixing the screen I tested most of the functions before reassembling but forgot to test the camera.
After I put the case back on it had been working fine for several hours when I tried to open the camera app. The screen flickered and the tablet crashed.
It then just bootlooped and if I booted into TWRP the screen was flickering badly.
I noticed however that after a few minutes (plugged into the PC USB port) while in TWRP the screen stopped flickering.
I also noticed the battery level reported is now wildly erratic. It would show 6% in TWRP then rapidly charge upto 80%.
I took the battery out to inspect it and upon reinsertion it's showing 6%.
A genuine new battery is only $16 from AliE but I'm wondering if I'm likely just wasting money and the issue is somewhere else?