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can i downgrade from 4.4 to 4.3?

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cad_2011
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Location: Melbourne
Question can i downgrade from 4.4 to 4.3?

hi fellow xdaers,

got a question on my i9505. i have installed this rom I9505XXUFNA1_I9505OXAFNA1_I9505XXUFNA1_OXA.zip for a while and due to my local telco running only 4.3, they mention that my phone is grey unit and they do not want to warranty it.

i'm wondering if i can re-flash back to its original 4.3 (telco) rom using odin without issue so that i can bring have it repair under warranty.

any gotchas should i look out for?

thank in advance.
Current: Xperia T2 Ultra (D5303)

Prev Phone:
Galaxy Note 2 N7105
Samsung Galaxy N7000
SGS2 (frankenstein) - PDA: XWKK5 | Modem/phone: XXKI3 | CSC: XEUKH2
HTC Desire - ROM: InsertCoin CM7 HBOOT/STOCK 1.0.8
bravo pvt4 ship s-off, hboot-0.93.001
radio-32.56.00.32U_5.17.05.08, CWM-Alpharev recovery v 2.5.1.8

Previous Tablet -
Acer Iconia A500 - Lightspeed_4.3[ICS4.0.3] ROM)
Acer Iconia A501 - Moscow's Alexandra III Rev 1.1
Samsung Galaxy Tab P1000T - OverCome GB ROM

---
 
spamtrash
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Quote:
Originally Posted by cad_2011 View Post
hi fellow xdaers,

got a question on my i9505. i have installed this rom I9505XXUFNA1_I9505OXAFNA1_I9505XXUFNA1_OXA.zip for a while and due to my local telco running only 4.3, they mention that my phone is grey unit and they do not want to warranty it.

i'm wondering if i can re-flash back to its original 4.3 (telco) rom using odin without issue so that i can bring have it repair under warranty.

any gotchas should i look out for?

thank in advance.
This is commonly known and very popular among many newbies technique to do it.
You need:
1. Phone;
2. USB cable;
3. PC;
4. Small picture of some saint;
4. pen and paper.
So, let's start:
go to your knees in front to your phone, plug it with the USB cable and prey for something (so called P'n'P, Plug and Prey technique). did it helped? no?? so, go to the next step.
Now, you can sit in front of the PC, pointing your left eye on the phone, you shall write 1000x: I WILL read all precautions before I will flash new generation test ROM with new bootloader.
Now, you can sit relaxed and wait for the official update. As soon as you'll have it, flash it, wipe phone and go back to the service center.
HTC HD2 (still alive and kicking), I9000, I9300, I9505
 
KingOfDope
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@spamtrash AHAHAHAHAHAHAHAHAHA

@cad_2011 no you can't, tell them to quickly upgrade to 4.4 because all new device are getting android 4.4 and are forced to use 4.4
-- I AM A FLASHOHOLIC --
 
cad_2011
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Location: Melbourne
it's not a custom rom, the 4.4 rom i used was from here http://www.sammobile.com/2014/01/10/...y-s4-gt-i9505/
Current: Xperia T2 Ultra (D5303)

Prev Phone:
Galaxy Note 2 N7105
Samsung Galaxy N7000
SGS2 (frankenstein) - PDA: XWKK5 | Modem/phone: XXKI3 | CSC: XEUKH2
HTC Desire - ROM: InsertCoin CM7 HBOOT/STOCK 1.0.8
bravo pvt4 ship s-off, hboot-0.93.001
radio-32.56.00.32U_5.17.05.08, CWM-Alpharev recovery v 2.5.1.8

Previous Tablet -
Acer Iconia A500 - Lightspeed_4.3[ICS4.0.3] ROM)
Acer Iconia A501 - Moscow's Alexandra III Rev 1.1
Samsung Galaxy Tab P1000T - OverCome GB ROM

---
 
KingOfDope
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Quote:
Originally Posted by cad_2011 View Post
it's not a custom rom, the 4.4 rom i used was from here http://www.sammobile.com/2014/01/10/...y-s4-gt-i9505/
once again, no you can't. You are now on a 4.4 bootloader and can't downgrade thnx to knox I hope that helped you!
-- I AM A FLASHOHOLIC --
The Following User Says Thank You to KingOfDope For This Useful Post: [ Click to Expand ]
 
marck_77
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Quote:
Originally Posted by KingOfDope View Post
once again, no you can't. You are now on a 4.4 bootloader and can't downgrade thnx to knox I hope that helped you!
the FNA1 still has got the old 4.3 bootloader, so yes, he can downgrade safely to 4.3 stock. Newer FNA5 and FNAD leaked roms have got the new 4.4 bootloader and they cannot be downgraded to 4.3 stock anymore.
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