S3 Rebooting after trying to sideload - Android Q&A, Help & Troubleshooting

I have just rooted my S# GT-I9305T using SkipSoft program and worked fine. I then tried to sideload SuperSu as I had 2.01 version. Now I did that the phone keeps rebooting showing the S3 screen then tries to go into Teamwin and loops cant get it to boot up. Can someone please help. If I hold the volume button and power button and home button it boots into a screen that says Warning Custom OS can cause problems.....Volume Up Continue Volume Down Cancel If you goto Up then a screen pops up and says Downloading and looks like nothing happening. Goto Down and starts to loop again

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[q] booting recovery image and then gtab shuts down

I am running cyanmod 7 and it works ok.
I am trying to upgrade to flashback. I hit the power button and + volume at the sametime. I see text saying detect a recovery key was presses. Then it says booting a recovery image and the screen goes black. The grab is off.
I tried placing clockworksmod8 the internal and external sdcards and tried the power + volume and the screen goes black I had on the gtab and I don't know what happened to it).
I tried running nvflash but it tries to install and apx driver and goes into a found new hardware loop.
What do you suggest I try next?
Is there a Recovery option when shutting down from the menu?

hatka flashed issue

i recently tried to flash hatka battery life after reading a guide, saying it was okay to flash the rom first now i am stuck with my droid dna not being able to turn off and only restarting. can someone please help me i am able to get to lockscreen and settings but the screen is black and i get android htcdialer has stopped when it opens. whenever i try to adb it says error
If your phone is frozen on a particular screen, keep holding down the power button, you will see your bottom 3 icons flash repeatedly, Keep holding the power button until it powers off (restarts), the hold time varies-sometimes you need to repeat this process. Once off (actually restarting), hold the volume down key in and it will re boot into fastboot/recovery, you can scroll to recovery and then restore (hope you have a backup)

[Q] Power button problems on all ROMs

Hello,
The past few days I've been experiencing random shutdowns and reboots. It just randomly turns off then displays the splash screen of "Samsung Galaxy S3 GT-I9300". It displays that for about 4 seconds then turns off and displays it again. Most of the time when I try to go into recovery it just restarts as soon as I get into recovery. When I eventually do get into recovey I press reboot system now and it says "Fix root - /system/su" or something along those lines. Now it just reboots when I press it. Right now I'm running the latest version of Archidroid. These problems started happening on the latest version of SentinelROM. Also now whenever I press the power button in any rom it either locks, comes up with the menu that shows up when you hold it down or just turns itself off. What can I do?
Thanks,
Lachlan
toobywedge said:
Hello,
The past few days I've been experiencing random shutdowns and reboots. It just randomly turns off then displays the splash screen of "Samsung Galaxy S3 GT-I9300". It displays that for about 4 seconds then turns off and displays it again. Most of the time when I try to go into recovery it just restarts as soon as I get into recovery. When I eventually do get into recovey I press reboot system now and it says "Fix root - /system/su" or something along those lines. Now it just reboots when I press it. Right now I'm running the latest version of Archidroid. These problems started happening on the latest version of SentinelROM. Also now whenever I press the power button in any rom it either locks, comes up with the menu that shows up when you hold it down or just turns itself off. What can I do?
Thanks,
Lachlan
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can you enter download mode? what does it say under product name?

Tricks for getting into recovery: screen just goes black after blue RECOVERY line?

whether I release power button, release and re-press or keep finger on power button or release all three buttons.' SAMSUNG appears for a half a second and the screen goes black
ROM Toolbox starts to a failed root check, then predictably gives the 'an error occurred while processing the command' message on reboot recovery
(FWIW it DOES go into download mode but is never seen by XP so I cant get to first base with Odin)
I am trying to clean out the cache after I tried to update and received the YOUR PHONE HAS BEEN MODDED error message
licensedtoquill said:
whether I release power button, release and re-press or keep finger on power button or release all three buttons.' SAMSUNG appears for a half a second and the screen goes black
ROM Toolbox starts to a failed root check, then predictably gives the 'an error occurred while processing the command' message on reboot recovery
(FWIW it DOES go into download mode but is never seen by XP so I cant get to first base with Odin)
I am trying to clean out the cache after I tried to update and received the YOUR PHONE HAS BEEN MODDED error message
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Are you experienced with going to recovery in your s3. I hold it usually longer than required.
Maybe yiu should try that because the s3 isn't that much of a beast.
I usually keep holding all three buttons and when samsung logo appears i leave the power button but keep holding the vol and home until twrp shows up. Try that. Might work.
Sent from my Pixel XL using Tapatalk
yes, I am
I have tried that method about two dozen times and wondered if there were any other tricks?
Hold home and vol+ while tapping the power button until you see the screen light up and let go of power but keep home and vol+ pressed.
If you can get adb you can type: adb reboot recovery (adb must be enabled in dev settings).
If you have a rooted stock rom installed it wouldn't hurt to flash the stock recovery via mobile odin and go from there.
Beamed in by telepathy.

Cannot boot to recovery after my phone got stuck at boot animation

I had LOS running happily for sometime, today I tried flasing PixelExperience. After installation, phone stuck at Google boot animation screen. Now I want to boot back to recovery, but I am unable to turn off my phone, pressing and holding power button restarts it. I cannot hook into it via ADB either, as it says unauthorized device. What are my options? How can I boot to recovery?
Press and hold vol up + power and do till you feel vibration and then when mi logo appear leave.
Do update what happened
segfaulter said:
I had LOS running happily for sometime, today I tried flasing PixelExperience. After installation, phone stuck at Google boot animation screen. Now I want to boot back to recovery, but I am unable to turn off my phone, pressing and holding power button restarts it. I cannot hook into it via ADB either, as it says unauthorized device. What are my options? How can I boot to recovery?
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Click to collapse
Flash Lazyflasher from twrp

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