[Q] reboot stuck in a cycle unless usb cable is plugged in - T-Mobile Samsung Galaxy S II SGH-T989

I was using Cyanogenmod 10.1.3 for few months just fine but few days back it started doing random reboots. The reboot doesn't complete at all and goes in cycles until I connect a USB cable attached to PC or wall socket. It just boots fine with USB cable connected. Once fully booted, I can disconnect the USB cable and everything is fine (until there is another random reboot or I choose to reboot)
I went back to stock (4.1.2), and it has the same exact issues. A random reboot can take few hours to a day. Is it possible that my battery is acting? Does boot process require more juice at some point that the battery is unable to supply? Appreciate any help.

malahal said:
I was using Cyanogenmod 10.1.3 for few months just fine but few days back it started doing random reboots. The reboot doesn't complete at all and goes in cycles until I connect a USB cable attached to PC or wall socket. It just boots fine with USB cable connected. Once fully booted, I can disconnect the USB cable and everything is fine (until there is another random reboot or I choose to reboot)
I went back to stock (4.1.2), and it has the same exact issues. A random reboot can take few hours to a day. Is it possible that my battery is acting? Does boot process require more juice at some point that the battery is unable to supply? Appreciate any help.
Click to expand...
Click to collapse
The problem seems to be none other than your power button getting stuck. This is a very common problem with SGH-T989/D phones. Please follow the steps in the following link to get your phone working properly once again.
https://www.youtube.com/watch?v=pqBgbN8NLjI
Regards,
Xx Jafours xX

Related

Gran Duos won't boot, restart on logo but works with usb recent flashed firmware

Hello guys, hope anybody here had this problem and was able to solve it.
I have a GT-I9082L from a friend here.
The phone won't boot, he was using the phone and suddenly it got crazy and started vibrate non stop.
When he tried to turn his phone on, it goes to the samsung initial logo (the one that display the model, at the very start), and reboot. It keeps doing this.
So I decided to flash the stock firmware via Odin, it was sucessful. The phone was working fine while it was with the usb plugged in (right after I flashed the FW).
When I unplugged the USB, the phone restarted and came back to the same problem.
I decided to flash again, same problem. It keeps running just fine but as soon as I remove the usb cable, the same thing happens, reboot and reboot.
I think the phone is not being able to keep the files in the internal storage. Somehow when I unplug the cable, it seems to erase all files inside.
Does anybody had the same problem? Or somthing similar?
What should I do?
Works on any power source
Guys, when I plug any power source it works. I think it is not being able to keep the energy from the battery. But the battery seems to work fine since when I plug it the battery icon shows as charging correctly.

P8000 won't boot

Hi all, i have problem with my P8000. My phone was discharged to 0%, and then i cant turn on phone. When i plug it to charger, blue circle do not light. i try to do:
1. Hold POWER - phone starts but when display elephone logo (1 second) telefon turn off
2. Hold POWER and POWER + - phone gone to bootloader, and them whatever i choose (recovery, normal) phone starts but after shown elephone logo turns down (like 1.)
3. Flashed stock rom via Flash tool (format + download) - like 1.
4. I have unpluged battery
after all, phone cant start... Someone can help me?
I think you have to leave it charging for a while before you are able to turn it on again. Just give it some time
jman0 said:
I think you have to leave it charging for a while before you are able to turn it on again. Just give it some time
Click to expand...
Click to collapse
I charged it for 48h and i cant turn it on...
mczlowiek said:
I charged it for 48h and i cant turn it on...
Click to expand...
Click to collapse
Try another charger/usb cable, just in case the one you're using is defective, or charge the phone connected to a computer
jman0 said:
Try another charger/usb cable, just in case the one you're using is defective, or charge the phone connected to a computer
Click to expand...
Click to collapse
another charger/usb cable did not solve my problem. When i plug phone into computer, then computer recognize it. I flashed stock rom with flastool, but problem was the same.... I changed battery (buy new one) but problem is this same...
blimps
mczlowiek said:
another charger/usb cable did not solve my problem. When i plug phone into computer, then computer recognize it. I flashed stock rom with flastool, but problem was the same.... I changed battery (buy new one) but problem is this same...
Click to expand...
Click to collapse
Hi,
I have/had the same problem. The problems started, with the phone powering down, at half the battery level. Then I got a spanish battery overheating message. After the message appears, the problem starts.
I solved the problem like this :
First you have to completely drain your battery. How to do that ?
- Go to the boot-menu (press power on button, and volume up at the same time). Select : Fastboot. The phone will halt. BUT, keep your phone in that state, so it consumes energy. After a while your phone will go out. After that : go again to your boot menu, but DON'T select any options. After a period of ± 5 minutes your phone will go out.
- THEN : remove your SD-Card, and SIM-Card.
- THEN : Connect your phone with the net-usb-charger. DON'T connect it to your PC.
- After 1 to 2 hours of chargeing, your down center button, should start glowing blue again.
I got my phone working again 2 times using this method.
I hope it works for you.
Phone Restored with this method! Thanks pal!
worked for my phone
thank you very much

HELP! reinstall stock firmware with (probably) not functioning USB

Hello, I have a p605 with TWRP and the latest LineageOS installed.
Suddenly the tablet has an odd behaviour about charging: it charges for, say, 6-7% then it stops charging until I unplug it and plug it back... then it starts charging for another 6-7% (sometimes even 10-12%) and so on until reaching 100%.
If I charge it with screen turned on, the "charging interval" may reach 20% or 30%, but then it stops as well, forcing me to repeat the unplug-plug trick.
Besides that, the tablet isn't recognized by the pc, neither for data transfer, nor in download mode by odin (usb device not recognized in both cases). Furthermore, USB OTG isn't working at all.
I suspect it could be a hardware issue (bad usb connector).
Apart from this, the tablet is working perfectly, but I wold like to reinstall Stock 5.1.1 firmware, which apparently I can, not having access to the tablet via USB in Odin.
Is there any safe way to flash the firmware in TWRP? or does exist some modified stock-based firmware flashable via TWRP?
Thanks a lot
That is weird, I had lots of issues with Lineage OS build so I kicked it to the kerb and went with AOSP.
I too had issues charging on the Lineage ROM, I had to charge whilst on otherwise it wouldn't charge whilst off. I would try another usb cable and or another pc. Make sure Odin is version 3 and above and try flashing to the stock 5.1.1 again.
You could try going into TWRP and advanced wiping all traces of the internal storage and try download mode again or add the files on a SD card and flash from external storage in TWRP, it can be done that is how I done mine but these were custom ROMS not stock ROM's, best of luck.
try using another operating system in your PC.....
Try using windows xp(32-bit) in your pc it will absolutely show your device in odin.
follow these steps:-
1) power off your phone
2) press and hold (power button+home button+volume up button).
3) you will get into odin mode prompting you to press volume up button to continue and volume down button to reboot.
4) press volume up button.
5) open odin from your windows xp pc and connect your device to pc.
6) HOLA!!!! it will show that your device is added!!.
:good::good:
vpazzagli said:
Hello, I have a p605 with TWRP and the latest LineageOS installed.
Suddenly the tablet has an odd behaviour about charging: it charges for, say, 6-7% then it stops charging until I unplug it and plug it back... then it starts charging for another 6-7% (sometimes even 10-12%) and so on until reaching 100%.
If I charge it with screen turned on, the "charging interval" may reach 20% or 30%, but then it stops as well, forcing me to repeat the unplug-plug trick.
Besides that, the tablet isn't recognized by the pc, neither for data transfer, nor in download mode by odin (usb device not recognized in both cases). Furthermore, USB OTG isn't working at all.
I suspect it could be a hardware issue (bad usb connector).
Apart from this, the tablet is working perfectly, but I wold like to reinstall Stock 5.1.1 firmware, which apparently I can, not having access to the tablet via USB in Odin.
Is there any safe way to flash the firmware in TWRP? or does exist some modified stock-based firmware flashable via TWRP?
Thanks a lot
Click to expand...
Click to collapse
If a different PC OS or USB connecting cable don't help, search Amazon for "Charging Port Dock connector For SAMSUNG GALAXY NOTE 10.1 P600 P605 2014". I'll admit I haven't installed it yet but am planning to when I replace the original battery once charge hold is low enough. I got the "TheCoolCube" version - there are installation tips in the reviews. I figured the USB port is probably one of the higher wear/stress areas of these older tablets & it's easy to access if replacing battery.
Good luck

H815 TWN Charging, reboot and USB connect problems

Hi guys, a week ago my phone H815 TWN started to act very strange.
Symptoms are:
1. Charging very slow and when unplugged still shows charging sign. (Fixed when remove battery but reoccurs when charging again)
2. On power off the phone reboots does not power off.
3. When battery is removed and placed back the phone boots without pressing any buttons.
4. When connected to PC via USB and then disconnected the USB connect manager notification remains active. (The phone is recognized from the PC)
Things I tried to fix the problem (unsuccessfully)
1. Cleaning the USB charging port
2. Hard and soft reset the phone.
3. Took the battery out for more than 10 min
I suspect that it is a hardware problem, as next step I am thinking to flash the firmware.
Does anyone experienced the same problems or has any idea what might be wrong?

Phone reboots in TWRP before flashing of a firmware, but it works with usb power on.

Hi, for some reason also TWRP shows from time to time different levels of battery charge (it could be around 80% at first but several seconds later after reboot it could be 3% for example), I have a typical bootloop and can use recovery and downloading modes but phone still can't load any OS properly - without USB power on it's just flashes Samsung Galaxy Note II but with USB power on it's just charging and doesn't even try to load OS (tried pretty much every ROM out there), I want to know is it solely a battery problem? Because also I had some temporal issues with SD-card and flash-drive connected by USB adapter (for some reasons they didn't mount for some time but working now again). Hoping for some tips.

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