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Samsung Galaxy SIII Neo Duos I9300I - Info & Discussion: Have a break. Have a KITKAT!

20th March 2015, 07:15 PM   |  #321  
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Quote:
Originally Posted by emnb

Hello,
I have S3 Neo GT-I9300I Jelly Bean 4.3. PDA I9300IXXUAND1 CSC I9300IOJVAND1.
Its not rooted.

I want to upgrade to KitKat 4.4.4 and I searched and found This Rom:
sammobile.com/firmwares/download/38468/I9300IXXUBNJ3_I9300IOJVBNJ3_XSG

First: Is that suitable for my mobile?
Second: what I do if I wanna downgrade again to Jelly Bean 4.3? (I downlowded and installed the Rom of PDA I9300IXXUAND1 CSC I9300IOJVAND1 previously with Odine 3.10 and the mobile is still in warranty period. I can update till now.

Thanx in advance
Attachment 3210263

Hey,
The ROM seems to be okay judging by the name (right phone and same region code) so no problem there, assuming you were looking for a ROM for one of the following : Austria, Belgium, France, Germany, Hungary, Italy, Nordic, Spain, United Kingdom.
You should be able to downgrade to 4.3 without a hitch as long as you take a compatible ROM (do not mix up i9300, i9300I and i9301I) with the right region code (else your phone could have network or language issues from what I've heard). You may have compatibility issues with some apps though.
DO NOT TRY TO DOWNGRADE BELOW 4.3 ! It would probably brick your phone because of knox (unless I'm wrong about it being on the i9300I).
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21st March 2015, 08:38 AM   |  #322  
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Then, I can downgrade from 4.4.4 to 4.3 safely.

Did I understand?
21st March 2015, 09:33 AM   |  #323  
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Quote:
Originally Posted by emnb

Then, I can downgrade from 4.4.4 to 4.3 safely.

Did I understand?

Of course. Where your phone has been made (see on the box) and download safetly on sammobile the corresponding firmware.
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22nd March 2015, 02:17 PM   |  #324  
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Quote:
Originally Posted by Bileng

Of course. Where your phone has been made (see on the box) and download safetly on sammobile the corresponding firmware.

I wanna share my experience with you.
I upgraded my S3 dous Gt-I9300I to 4.4.4 using Odin.
I asked if I can downgrade again to 4.3.
I did it yesterday.
when I downgrade using Odin it said PASS. I expected every thing will be OK, but I chocked when I found SAMSUNG logo sticks on the screen and the phone stopped at it.
I became confused a little, but later I pressed Home+Volume Up+Power and chose wipe data/ factory reset
Then the phone starts with 4.3 without any problems.
The OTA Software update works and I think I didn't lose the warranty.
Last edited by emnb; Yesterday at 12:54 AM.
22nd March 2015, 10:54 PM   |  #325  
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Quote:
Originally Posted by emnb

I wanna share my experience with you.
I upgraded my S3 dous Gt-I9300I to 4.4.4 using Odin.
I asked if I can downgrade again to 4.3.
I did it yesterday.
when I downgrade using Odin it said PASS. I expected every thing will be OK, but I choched when I found SAMSUNG logo sticks on the screen and the phone stopped at it.
I became confused a little, but later I pressed Home+Volume Up+Power and chose wipe data/ factory reset
Then the phone starts with 4.3 without any problems.
The OTA Software update works and I think I didn't lose the warranty.

Ok
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android 4.3, android 4.4, galaxy s3 neo, i9300i, kitkat
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