[Galaxy S III I9305 (4G LTE + 2GB RAM) Q&A, Help & ] maultasche:
Hi everyone,

some who frequently read the forum may know already that there are issues with the latest official TWRP for the Galaxy S3 LTE. The recovery partition on the Galaxy S3 LTE is too small for the latest recovery provided by TWRP. The partitions are messed up, you won't be able to mount /system and /data. Some users couldn't even flash their preferred ROM. As of now the buggy recovery is getting fixed.

I am not responsible for any damage, losing data or weird behavior you encounter while doing one of the following steps. As reported by several users step 1 was the way for them to fix their phone. Be sure of what you're doing. Make sure you know how to boot into recovery/Download Mode to do these things mentioned here and how to use odin. If not, XDA users have provided several guides. Use the search.

If you already flashed the faulty recovery, flashed a custom ROM with it and your phone ends up in a bootloop there are several ways to fix this issue.

1. Via odin and official stock firmware - please note: You might lose all your data you have on your internal storage

Download the latest official Samsung firmware from sammobile or look on XDA for provided stock ROMs by the AMCHA team. Boot your phone into Download Mode and flash the official firmware via odin. If you're done, reboot into stock recovery (which will be provided after flashing the stock firmware), perform a factory reset and let your phone boot up once. First boot might take some time, so be patient. Although the first boot might not be needed, do it anyway to see if your phone is still in a bootloop or suffers from other damage. If the phone boots up fine reboot into Download Mode again, flash TWRP 2.8.5.0 or any other latest custom recovery (preferably the recovery the maintainers recommend in their development threads) and flash your preferred ROM. Your phone should now work as it should.

2. Via stock based custom ROM (if you haven't flashed any ROM via TWRP 2.8.7.0 already - please note: You might lose all your data in this process as well

Some users managed to get their phone working by flashing a stock based custom ROM like AMCHA or N4 Elite. If you only flashed the buggy recovery and didn't flash a custom ROM this way should be the step you should try first. Download any stock based custom ROM and flash it via the faulty one. If your phone boots up fine, boot into Download Mode and downgrade recovery or use any other recovery recommended for the ROM you're using. If you encounter issues or weird behavior with your phone go with step 1.

3. Via flashing a fixed TWRP 2.8.7.0 - please note: You might as well lose data

In this option you can flash a fixed version of TWRP which an user of XDA has provided. Many thanks to StdBarbarossa for his work. Unfortunately in his build you cannot mound your SD card via PC as it's not working at the moment. Make sure you have all the needed files already on your SD card. For some users this way was working for them. Boot your phone into recovery, click on install, change from .zip to .image, choose the Alpha17.img, install it by swiping and reboot your phone into recovery. Perform a wipe (preferably a factory reset, cache and dalvik cache might be working too) and see if your phone boots up fine. Here the same: if you're still facing issues go with step 1.

Link for the TWRP Alpha17 2.8.7.0 https://drive.google.com/file/d/0B-tlso-zNf9NMWlMMFpiYmYwTzA/view

I have gone through the same issue. In my case I only managed to get my phone working again with step one as I had flashed a custom ROM via the buggy recovery and ended up in a bootloop. As stated, others have managed to fix their phone with either option 2 or 3.

Link for the fixed TWRP is provided in the spoiler.

If you're not sure about something ask here first before you might brick your phone. If you know any other way to fix this issue feel free to post it here.