My first Android phone - Android Q&A, Help & Troubleshooting

Hello everyone. I recently got my Samsung galaxy s4 mini I9190. Which have 4.2.2 jelly bean. After searching I found that I can upgrade to kitkat using other region stockrom using odin. So is it safe? If I want to downgrade to my original jelly beans stock rom, will there be any problems like no wifi or corrupted imei?
And I also came across this twrp and custom roms. In case if I install twrp and custom lollipop rom. Will I be able to go back to jelly beans if I have back using twrp backup. Or using odin with no twrp back.up. and how will I get my original stock Recovery menu. I mean like it was before twrp.
I know I asked alot but please help.
And I searched alot regarding these questions but couldn't found any.
If there are any necessary steps regarding downgrading or using custom roms first time. Please tell me.
Thanka for listening.
Sent from my GT-I9190 using Tapatalk

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Installation MIUI on Galaxy S3 with Samsung stock 4.3 rom

Hello gentlemen, I have Galaxy S3 and I have there stock rom from samsung android version 4.3 (specifically i9300XXUGNA8) and I would like to try a MIUI rom. However I find guide only with downgrade on stock rom version I9300XXDLJ4 which is android 4.1.1. But I know that it used old EFS file version 1 and in my rom is EFS v2. So if I downgrade it, the telephone was not work - especially signal from operator. Does anyone have any advice or some guidance on how the stock Samsung rom to MIUI. Thanks for the advice. (and sorry for my english)
pisek3 said:
Hello gentlemen, I have Galaxy S3 and I have there stock rom from samsung android version 4.3 (specifically i9300XXUGNA8) and I would like to try a MIUI rom. However I find guide only with downgrade on stock rom version I9300XXDLJ4 which is android 4.1.1. But I know that it used old EFS file version 1 and in my rom is EFS v2. So if I downgrade it, the telephone was not work - especially signal from operator. Does anyone have any advice or some guidance on how the stock Samsung rom to MIUI. Thanks for the advice. (and sorry for my english)
Click to expand...
Click to collapse
I've used the MIUI rom for s3, and trust me, it's really good. The only downside is that you have to downgrade to android version 4.2.2 which is CM based. The latest version is based on 4.2.2, not 4.1.1
You have to do this:
1) Root your s3 following a proper guide. There are plenty on the net. Just google it.
2) Install a custom recovery. I recommend TWRP or Philz Touch recovery.
3) Download the MIUI rom from their official website en.miui.com
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Done. Hope this helped

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iTz_Aleex said:
Hey everyone, this is my first thread on this huge community. Can someone suggest me a custom ROM that can be flashed using ODIN or Mobile ODIN or via CWM 4.0.x.x? I've tried twice to install the 6.0.x.x version, but in both cases I soft bricked my device
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Click to expand...
Click to collapse
Hello,
You should update your recovery to this: http://forum.xda-developers.com/galaxy-s2/development-derivatives/kernel-t2291756
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Regards

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