[Galaxy Ace S5830 Q&A, Help & Troubleshooting] GuitarGuy96:
Is there any way to go back to the original Android v2.3.4 after automatically updating it to 2.3.6?

You see, 3 days ago, I went in Settings>About Phone> Software Update. My Galaxy Ace was earlier running on android 2.3.4 (DDKQ6 if that helps) and it was superb. After I chose the "Software Update" option, it downloaded a 14MB file and then stated my phone would be rebooted and no functionality would be enabled while its rebooting.. So the phone rebooted and it took me into a "recovery mode" like state and the android logo was there with this box showing an arrow pointing out of it. Below was just a yellow status bar showing how much was completed. It took me about half an hour and the phone started. My phone is now running Android 2.3.6 *DDKQ 8*

Initially, everything was fine.., I was enjoying the new UI and all, but then the problems started coming up... My battery started to drain like hell!! Earlier, running 2.3.4, I'd full charge the battery like at 7AM and after a day of full usage, downloading apps, IMs, browsing the web, playing games, listening to music and all, the battery would then come to somewhere around like 10% toward 6-7PM in the evening.. But now, running 2.3.6, my battery gets eaten up like Gabriel Iglesias to tacos! xD

I'd charge it in the morning and by noon 12 o clock its 40% already.. and barely lasts till about 2 o clock.. So that's one thing, my battery runs down really fast.

Second, my tethering gives trouble.. I cant connect to the internet when I turn the phone into a wireless hotspot. Sometimes there's even trouble connecting to the phone.. And when I do manage to however, then I get messages like This website cannot be displayed and all, but on the phone's browser the pages open. I've checked my computer's settings, its all fine and haven't been changed at all. It worked without any issues when I had 2.3.4 ..

And one final thing is that my Bluetooth's giving trouble too now.. I'll try switching it on, and below in grey its written "Turning on..." and then after like 30 seconds it says "Failed" and a few seconds later, it'll reboot automatically. This doesn't happen everytime i switch on the Bluetooth, but then again, it never happened with 2.3.4.

So highlights,

I've told you the steps I used to update it. Settings>About Phone>Software Update. It was a FOTA update and I didn't have to hook it up to the PC or anything.

Error messages like the Bluetooth failing and the phone then rebooting, portable hotspot problems, and the insane battery drainage..

These are the main issues..

I'm mainly wanting my battery life to come back the way it was..!

I never had any problems with my Ace.. It was the BEST phone for me.. I was so enjoying it. Didn't think 2.3.6 would ruin so much.. To be honest, I didn't think that 2.3.6 was coming my way when I did the software update. I was just thinking it would be some other minor changes since it seemed just 14MB but obviously, I was wrong, and now learnt more about it xD

So my question - Is there some way to revert to the earlier version of Android2.3.4? Please say YES xD and then please tell me how do I do it! I've searched the internet so much but to no avail. They all keep saying to use this ODIN thingy and download some other files and flash the ROM and all.. I'd give it a try, but I'm not really keen on doing it just yet. I'm looking for alternatives.

The only other thing I've done to this phone is root it.

So please help me getting back to the earlier original Android 2.3.4 I had since the day I bought the phone! It worked like a charm without any errors, problems what so ever! :(