Motorola G7 Play Hardware issue causing powercycle - Moto G7 Play Questions & Answers

Hi All,
I have replaced a broken touchscreen on my Motorola G7 Play. After connecting the new screen, I powered up the system only to find that it is stuck in what I thought was a boot loop. However, when I press down the vol key + power button, the phone enters the recovery mode but still restarts on its own after a few seconds.
So now I am thinking I have a hardware issue that is causing the phone to power cycle.
I removed the battery and powered via USB but this does not change anything.
Does anybody know what to check on the motherboard (my idea is that something is shorted to ground). Any ideas are welcome.
Regards,
Irionix.

Related

Power/Hardware Problem?

I recently got my wife an Excalibur (I've been cooking/flashing Kaiser Roms for a while) and unlocked/upgraded it without issue.
She's been using the phone several weeks, until the following series of symptoms began:
1. Phone shuts down several seconds after booting up - sometimes with shutdown screen/noise, sometimes without.
2. Phone will not boot up again until battery is removed and reinserted, at which point it automatically boots (without depressing power button).
3. Phone shows full battery and charging light indicates charging while on, but will not appear again after shut down.
4. Phone will NOT hard reset using soft-keys + power, or enter bootloader using camera button, and thus cannot be hard-reset or re-flashed.
The only (non-ruining) possibility I can think of, which I'll look into, is mis-sensing the power button permanently depressed (which may initiate shut down after boot-up and prevent bootloader/hard reset?).
That, or some bizarre hardware/power issue.
Any ideas?
Thanks for any help...
I'd buy "borrow if can" a branded battery like simplo and see if you have a battery issue?
Also worth considering is the charger what happens when plug in via USB?

[Q] Galaxy Nexus Power Button Issue

So my galaxy nexus' power button won't work. At first I thought I had bricked my phone when it shut off and wouldn't respond to anything. Yet when I plugged it into a power source it showed that the phone was charging. And when I swapped batteries it would accurately show that the battery was charging and it would charge the battery. So I bought a jig and plugged it into my phone and it booted it straight into Odin Mode (I did not have to press the power button it just did it) and now my phone is in Odin Mode but I can't press the Start button well b/c my power button doesn't work. I have tried the jig with different batteries and I have tried powering the phone on without the jig, to no avail. I am assuming this is a hardware issue or is there some software issue that causes the Power Button not to work? And if it is a hardware problem is there an easy fix?

Nexus 7 2013(LTE) power button problem (and more)

Hi all! I need help with my Nexus 7 2013 (LTE)
It has strange behavior with power. I assumed it was battery problem, but I've replaced original battery with new one, but problem remains. So.
Power button works really strange. It works ok if device is On: it switches screen on and off okay. But! When device is Off it is impossible to turn it on with power button. Power button works ONLY if device is charging.
Moreover. It is possible to get to the recovery (when device is charging) by pressing power button together with volume key. But it is NOT possible to choose option by the power button inside menu (volume keys work fine).
Also now new problem arrived today: device is starting charging with power cable, but charging icon appears only for 30 seconds and pass away: charging is stopping.
Moreover. Yesterday smth strange happened and after turning device on touch screen does not work. Hm (maybe I've damaged smth when disassembled device?).
So. Any help? Thank you in advance!

G Pad bricked. Any help would be appreciated!

Basically, the device wont turn on no matter what I do, no matter what key combinations I use. If I plug it into a power outlet, the LG logo comes up, then the tablet shuts down, then the LG logo comes up, rinse and repeat.
If I plug it into a PC, I get the sound of it connecting and disconnecting over and over, but nothing comes up on the display.
I've never had a bricked device that I couldn't unbrick by going into adb or download-mode but I can't even get into download mode. I'm stuck and ran out of ideas.
Any help would be greatly appreciated! Thanks!
EDIT: I got it to show the charging logo. Basically just left it plugged in doing the logo-loop for about 15 minutes until the battery indicator showed up. Very strange. Hopefully once it's charged everything will be fine.
Have you pressed the volume up key + pressed the power button multiple times over and over, I can get mine into download mode only if I use that method.
When I corrupted my tablet, first it would hang on the LG logo screen and never boot into anything, once, then I got the issue of it boot looping only into TWRP only even after installing ROM's, then flashed TWRP in TWRP, and wala, fastboot boot loop only, for the life of me I could not get it to go into download mode, I had almost given up, but alas the last attempt to randomly smash buttons unveiled that holding volume up + clicking power over and over rather quickly rendered it to download mode...
If your getting the LG logo screen its likely that you can recover it.
As for the connecting/disconnecting, its likely that the device your connecting it to cant provide the power being pulled by the device, I have to use a powered USB hub for my Alienware 17 (R2) early 2015 laptop, as it cant handle the power draw of almost any devices, I have had issues even with self powered USB portable hard drives, so I really can feel your pain.

Boot loop of Death - Oneplus 3

My Oneplus 3 is currently facing the worst form of boot loop. The phone keeps looping until it drains all of its battery.
This phone has been running like a tank for the last 4 years. When this issue began, it had 75% of the battery at the time. The phones Power button menu got automatically triggered and phone was restarted (all within 5 seconds) and ever since its stuck in a boot loop.
Below is the current scenario
Power off button has no effect, the phone keeps looping since then
Vol+ enters fastboot but I can't select anything, looping continues after 2 secs or so (Device state: LOCKED)
Vol- has the effect that the looping stops as long as I hold the button. After releasing that button the loop pauses for let's say 10secs and the loop continues. Otherwise no effect.
Power & Vol- buttons pressed together leads to a PIN unlock screen after the boot screen, I enter the pin, hit OK and as the Decryption begins.....we are back to boot loop
when plugged to power connection: loop cycle seems to be larger, loop occurs every 10 secs. in between the phone stays off
when the power becomes low, the boot loop continues but with the 'Battery too low' screen and the loops continue until the battery completely drains out
When I hold both the Volume buttons and connect to the PC via USB, the phone establishes a short connection for a few seconds. Not a stable connection, it showed "QHUSB_BULK" port in the device manager and I was able to somehow install the Qualcomm driver.
Post that when I connect, it directly shows a "Qualcomm HS USB QDLoader 9008 (COM5)" in the Device manager but the connection only lasts for a few seconds as the boot loop continues.
The MSM tool detected the connection a couple of times but since the connection only lasted for a few seconds, the tool wasn't able to anything.
I have scoured over the forums for a similar scenario, haven't found any.
Look, the phone has had its fair share of drops and falls over the years and it withstood it all. And this issue happened when I was casually browsing on chrome. I don't know what to say ...Please help!!
chris-coder said:
My Oneplus 3 is currently facing the worst form of boot loop. The phone keeps looping until it drains all of its battery.
This phone has been running like a tank for the last 4 years. When this issue began, it had 75% of the battery at the time. The phones Power button menu got automatically triggered and phone was restarted (all within 5 seconds) and ever since its stuck in a boot loop.
Below is the current scenario
Power off button has no effect, the phone keeps looping since then
Vol+ enters fastboot but I can't select anything, looping continues after 2 secs or so (Device state: LOCKED)
Vol- has the effect that the looping stops as long as I hold the button. After releasing that button the loop pauses for let's say 10secs and the loop continues. Otherwise no effect.
Power & Vol- buttons pressed together leads to a PIN unlock screen after the boot screen, I enter the pin, hit OK and as the Decryption begins.....we are back to boot loop
when plugged to power connection: loop cycle seems to be larger, loop occurs every 10 secs. in between the phone stays off
when the power becomes low, the boot loop continues but with the 'Battery too low' screen and the loops continue until the battery completely drains out
When I hold both the Volume buttons and connect to the PC via USB, the phone establishes a short connection for a few seconds. Not a stable connection, it showed "QHUSB_BULK" port in the device manager and I was able to somehow install the Qualcomm driver.
Post that when I connect, it directly shows a "Qualcomm HS USB QDLoader 9008 (COM5)" in the Device manager but the connection only lasts for a few seconds as the boot loop continues.
The MSM tool detected the connection a couple of times but since the connection only lasted for a few seconds, the tool wasn't able to anything.
I have scoured over the forums for a similar scenario, haven't found any.
Look, the phone has had its fair share of drops and falls over the years and it withstood it all. And this issue happened when I was casually browsing on chrome. I don't know what to say ...Please help!!
Click to expand...
Click to collapse
Check your power button. I think that it might be stuck in the 'on' position. If you have a case/cover for the phone, remove it and check.
You may also have to open up the phone for checking.
Otherwise, may be a motherboard issue.
Hold the buttons longer.
Try again but don't release until the tool is properly running.
chris-coder said:
My Oneplus 3 is currently facing the worst form of boot loop. The phone keeps looping until it drains all of its battery.
This phone has been running like a tank for the last 4 years. When this issue began, it had 75% of the battery at the time. The phones Power button menu got automatically triggered and phone was restarted (all within 5 seconds) and ever since its stuck in a boot loop.
Below is the current scenario
Power off button has no effect, the phone keeps looping since then
Vol+ enters fastboot but I can't select anything, looping continues after 2 secs or so (Device state: LOCKED)
Vol- has the effect that the looping stops as long as I hold the button. After releasing that button the loop pauses for let's say 10secs and the loop continues. Otherwise no effect.
Power & Vol- buttons pressed together leads to a PIN unlock screen after the boot screen, I enter the pin, hit OK and as the Decryption begins.....we are back to boot loop
when plugged to power connection: loop cycle seems to be larger, loop occurs every 10 secs. in between the phone stays off
when the power becomes low, the boot loop continues but with the 'Battery too low' screen and the loops continue until the battery completely drains out
When I hold both the Volume buttons and connect to the PC via USB, the phone establishes a short connection for a few seconds. Not a stable connection, it showed "QHUSB_BULK" port in the device manager and I was able to somehow install the Qualcomm driver.
Post that when I connect, it directly shows a "Qualcomm HS USB QDLoader 9008 (COM5)" in the Device manager but the connection only lasts for a few seconds as the boot loop continues.
The MSM tool detected the connection a couple of times but since the connection only lasted for a few seconds, the tool wasn't able to anything.
I have scoured over the forums for a similar scenario, haven't found any.
Look, the phone has had its fair share of drops and falls over the years and it withstood it all. And this issue happened when I was casually browsing on chrome. I don't know what to say ...Please help!!
Click to expand...
Click to collapse
I had the same. The power button broke. He was pressed all the time. Using tape and foil, I changed the contacts with vol + before the new button came.
I am facing the same issue , any solution ?
Update: while I moved on to a new phone, I tried turning on the OP3 once again after 8 months and miraculously the boot loop had somehow stopped and it let me enter the fastboot recovery manager. But my power button is still not functioning so couldn't do much in there.
So while in fastboot mode I connected my phone to the computer and via ADB did a "fastboot reboot" which restarted my phone normally.
Right now..
Power button is dead, so a virtual power button is used, the alert slider is also dead for some reason, so a virtual volume controller.
Whenever my phone shuts down due to empty battery juice or another unknown cause I have to restart it via the ADB fastboot method mentioned above. Other than that the phone works fine.

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