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downgrading .... help

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kimo3010
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Default downgrading .... help

hi , i have a c6903 with a stock 4.4.2 firmware .757 but i have serious ram problems so now i want to go back to 4.3 firmware 136 but i heard some of the people that tried to downgrade before from 4.3 to 4.2 got a hardbrick so to my questions how can i safely downgrade my phone or there a fix for the ram problem ?

note i have downloaded flashtool-0.9.15.0 and C6903_14.2.A.1.136_Global-LTE_1277-2880_R1B.ftf , am i good to go ????
 
eclyptos
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Originally Posted by kimo3010 View Post

note i have downloaded flashtool-0.9.15.0 and C6903_14.2.A.1.136_Global-LTE_1277-2880_R1B.ftf , am i good to go ????
Yes, you are good to go. Flash .136 FW and wipe Data, Appslog and Cache. It is recommended to do that, if you will try to keep your data you can face many problems, just wipe everything and you will be fine.
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How Get Root on Sony Xperia Z1 with Locked Bootloader and the Latest Android 4.4
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kimo3010
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Yes, you are good to go. Flash .136 FW and wipe Data, Appslog and Cache. It is recommended to do that, if you will try to keep your data you can face many problems, just wipe everything and you will be fine.

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sagija
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(Last edited by sagija; 4th June 2014 at 10:44 AM.) Reason: fixed
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Originally Posted by kimo3010 View Post
hi , i have a c6903 with a stock 4.4.2 firmware .757 but i have serious ram problems so now i want to go back to 4.3 firmware 136 but i heard some of the people that tried to downgrade before from 4.3 to 4.2 got a hardbrick so to my questions how can i safely downgrade my phone or there a fix for the ram problem ?

note i have downloaded flashtool-0.9.15.0 and C6903_14.2.A.1.136_Global-LTE_1277-2880_R1B.ftf , am i good to go ????
I want to do exactly the same thing. where did you download the ftf file because in my case on MEGA it comes to 99% and just stops.

edit: downloaded via chrome. for some reason mozilla just stops at 99%.
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eclyptos
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edit: downloaded via chrome. for some reason mozilla just stops at 99%.
Thanx, now I know why.
IF I HELPED DO NOT SAY THANKS, CLICK IT.
My Evolution: Sony Xperia Z1 - UB + 4.3 Rooted + Deodexed, HTC HD2, HTC Diamond 2, HTC HD Blackstone, Nokia 7070 Prism, Qtek 9100, Nokia 3100, Motorola T720i, Nokia 3310, Sony Ericson PF 768 (Blue)

How Get Root on Sony Xperia Z1 with Locked Bootloader and the Latest Android 4.4
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