[Q] I-9300 bootloop and no recovery

Varjo said:

Hello,

I have a S3 which is stuck in a bootloop at the samsung logo.
when i turn it on it shows the logo for some seconds then the screen goes black and the logo re-appears.
i can not boot into recovery mode, but download mode is working without a problem every time.

i tried flashing stock firmwares with odin and also tried kies emergency firmware recovery. the flashing always went without any problem, but it had effect. whatever i try, i am never able to boot into recovery and still stuck in the bootloop.

in some tries after flashing the screen just shows the samsung logo forever, but after rebooting it once it then is stuck in a bootloop again (shows the logo - screen goes black - shows the logo...)

i also tried flashing TWRP and CWM via odin, but again i can never boot into recovery mode.

what should i try next?

thx alot for any helpful comment

Click to expand...

Click to collapse

You can Try this:

1.) Pull out battery
2.) Put it in again
3.) Press Vol up + home + power
4.) When the Samsung Logo appears let it off

I think you press the Buttons too long.
I had the same problem!

Nand erase will usually hard brick it. Try the rescue firmware from general forum, sticky thread. Follow the guide exactly as it includes a pit file.

Sent from my GT-I9300 using Tapatalk

Had a similar issue on my tab2 p3100. It all happened when I tried flashing a custom recovery from rom manager.
A bad flash of anything related to recovery or bootloader could be a probable cause.

I remember a knowledge share on one of the threads describing this issue and as mentioned on it all I had to do is this:

1) switch off the device and plug in the charger. This would light up the display showing you the charging status. The status has to show if at least your bootloader part of the phone is fine.

2) plug out the charger and immediately press the three buttons (home + vol up + power) get into recovery mode. This step has to work and help you get to recovery mode.
***Note : the interval within which this step has to be performed is too short since the display would turn off immediately as soon as you plug out the charger. A bit tricky too so you have to be fast. If this misses getting you into recovery, pull out the battery and put it back again. Repeat step1 and 2 again.

3) upon successfully getting into recovery, perform wipe data, cache and select reboot phone from option available on recovery again.

Allow the device to boot. This could take a while since you have performed a data wipe and may prompt for first time set up.

I was able to restore functionality on my tab after these steps and like ppl learn from their mistakes, I then learnt that recoveries and bootloaders are things that needs to be done with a pc only.

Worth a try if you have tried other alternatives and found no go. may help. Who knows..

all the best.

If the rescue firmware didn't help then it looks like the emmc chip is damaged.

Sent from my GT-I9300 using Tapatalk

Varjo said:

is there a way to make certain of this? how can i tell if it is really a hardware damage and not just a software brick?
i just dont want to let the phone go, it looks still so shiny

is there anything else that could cause the phone not booting into recovery mode after flashing custom recoveries?

Click to expand...

Click to collapse

http://xdaforums.com/gala...-help-t2737707

Same here, still didn't found how to fix it.. I guess our motherboard just died..

Howewer I have a solution that "almost" worked for me.

Get a stock firmware in odin and turn on Nand erase and T-flash
When it's done phone reboots and you'll see just "Downloading..." mode when you turn it on.
Then got to Kies and Select firmware recovery...
Enter s/n and model name and wait for the flash to complete.
With it , I got past boot logo and actually booted into android but the phone crashed because I guess I have a memory issue..
Well , gl. If you don't find anything else helpful , try going with this method..