Develop Bugs

Device won't start up

ok so earlier today my s3 ran out of battery and shut off. I attempted to charge it, but noticed the red indicator light wasn't on. I tried to turn the device on, but all it did was vibrate and show the battery level logo with the circle in the middle as if its computing the battery level, then shuts back off. most of the time it will just vibrate and loop the samsung logo and then shut off again. sometimes it also shows that my battery is nearly fully charged after i left it on the charger while i was in class, but then shuts off. the farthest it has showed anything on start up was the at&t logo with the white background, then it shuts back off. i've tried to boot the phone connected to the charger and took the battery out, that didn't work. tried to take the battery out and leave it for 10 mins and put it back in, that didn't work. although it would vibrate everytime i put the battery in. i also tried to boot the phone in recovery mode. it would say recovery mode booting in blue letters, then it would go to the samsung and galaxy s3 logos, but then shut off again. also tried the download mode boot up, but i just saw the OS warning screen for a second, then it shut off.. i've ran out of ideas on what to do. hoping anyone could provide anymore advice for me. thanks in advance!

S4 shuts off & hard to reboot or unable to reboot?

S4 using Insane KK v9 and everything has been running smooth for a long time now but now the phone will randomly shut off when on battery (full charge). When I try to power it back up I get the samsung logo for a few seconds and then it goes blank and shuts off again. Battery pull results in the same, but if I plug it in again it might boot up normally, OR I get a grey battery pic followed by a green one showing a charge, but still unable to boot.
Any ideas?

Could be a stuck power button. Try to see if you can fix it by hitting the side against a surface or open the device

Galaxy tab S T705 not turning on without charger

hi guys,
sorry if i had to ask this i think i'm out of options that i'm aware of.
i have a tab s t705 which has been on stock firmware for the longest time(5.02, country PH) and a week ago it just died.
the tablet charges but does not turn on. i can get to odin and recovery modes but it does not boot to system. also it does not turn on when i unplug the charger.
what i've done so far:
. pressed the power button for more than 30seconds, unplugged - nothing
. pressed the power, home, and -vol buttons for about the same time, unplugged - nothing
. pressed the power button for the same amount of time, plugged - only charging icon with batt level, nothing else
. pressed the power, home, nd -vol buttons for a few seconds while plugged, gets into pdin mode but restarting it just goes back to charging icon
. pressed power, home, and +vol for a few seconds while plugged, gets into recovery mode and after trying factory wipe and wipe cache, still goes back to charging icon when rebooted
. followed a guide to remove the back cover and disconnected battery for more than five minutes and did the same steps - same results
. tried plugging in to computer where it was installed before - not detected, not even odin(3.05 - 3.11 versions) does not detect it
this tablet is absolutely out of warranty already and i sort of like this tablet. any chance i can still revive this, or were there some steps that i have missed?
seriously, thanks in advance for any help

If you have an DMM check the voltage of the battery it should be 4.35v fully charged battery, If the battery is faulty maybe that is what is stopping the tablet fully booting, maybe somebody else knows.
John.

unfortunately i dot have acces to such tool but i really am hoping that this could be just a dead battery.
i'll see if replacing the batt would fix this and reply back for the results. thanks!

Stuck in low battery boot loop

Hello, Huawei gadget friends.
My watch started to go in to a "low power boot loop" a week ago so I left it alone hoping a full drain would restore it back to working condition, but alas not.
So now this is the situation:
1) press button, nothing happens
2) connect to power shows the charging icon (white battery with power sign) and then after a few mins commences a boot loop as follows
3) from the charging icon, then gives the "Device software can't be checked for corruption..." message
4) followed by the red Huawei logo, then a single vibrate and then back to step 3 above
5) removing the watch from the charger stops the boot loop but then shows the low battery icon (white battery with one bar).
In one or two occasions, I saw it boot up to the colorful spinning 4 android wear logo, but did not complete (did not show "Android Wear" before rebooting again.
I have tried getting it to recovery mode screen or fastboot but without success -- I keep getting the second buzz without fail.
When the beta of 1.5 came out, I tried it, but since then, have wiped my mac and don't have the adb/fastboot software anymore. From reading the forums, there is now some new software called TWRP. Please advise what I can do.
Would I be right to suspect that it is some battery problem? Is it beyond help? :crying:
Thanks in advance!
MMM
Edit: I have also left it on for several hours charging (and rebooting constantly), thinking that perhaps it is just low battery -- but no success.

I'm experiencing the same problem, i turned it off yesterday at 17% and connected to the pc this morning to charge. I immediately noticed that it started looping with the white icon and it doesn't turn on, nor boots into download mode.
Have you found any way to restore it?
Mine doesn't show the red HW logo, charged for some hours and nothing.
I noticed that the pc see that there's something connected, but keeps saying "USB not recognized". I don't know what to do, i may open up and disconnect the battery
EDIT: SOLVED, it was just the cable that broke somehow. I soldered a new cable to the circular base but that didn't work, but as soon as i received this i connected to the pc and started pressing the button randomly till it showed the battery logo and started charging

I got this when I plugged it into my laptop. Plugging it into a dedicated USB charger solved my problem - I suspect the power rating on the USB socket wasn't high enough to charge effectively or that the USB socket is faulty in some other way. From what I understand, not all USB sockets are equal in that some are suitable for high-drain devices, some not so much. So trying another USB port on your computer may also help (Unfortunately at the time I was backing up to an external HDD on the other USB so that option wasn't open to me).

guyz, i have tried my method it actually worked on Xperia X Perfomance
When it goes to Bootloop for Drained battery, i just plug the cable and perform activity block method By pressing and holing power and both volume up and down and when it hits the 1st viberation i just simply release the key. (remember dont hold it too much long after 1st single viberation just release the keys ) and your phone will go to block activity mode. charging light will change it colors from red to blue.. after 2 minutes just press power button then you ll get another viberation and your phone will be seen as charged 2% and then it will be normal again...
i think it happens when battery drained and phone is unexpectedly trying to go boot in first place.
thank you

Please help me fix my brick Samsung Galaxy Note8

Hi everyone. Samsung Galaxy Note 8 (the region in Vietnam) is my first smartphone. While using TWRP to install a Rom of Dr.Ketan (https://forum.xda-developers.com/t/...folder-i-jio-volte-i-gear-spay-i-dex.3681163/), I accidentally chose something wrong (Choosing to go to a Library, then choose Exit... Something like that). After that, my phone turned off, and has these symptoms:
1. It vibrated after I pressed any buttons, or hard press to the screen (in place of the Home screen button). I tried Vol Up+Bixby+Power, but the TWRP didn't show up like it used to.
2. I checked the internet and found a step: Vol Down + Power. It helped my phone screen light up and displayed "Samsung Galaxy Note8 POWERED BY android", and it keeps displaying like that without any changes.
3. I tried to plug the charging cable, but the charging light on the phone didn't respond. Only the screen logo responded as it changes to the charging screen (with no battery % show up). The charging icon is in white color.
I hope someone here can help me fix my phone. Thank you in advance!