Saturday, March 5, 2016

Sim unlock on I9505 above 4.2.2

Hi guys,

I was given a phone to use after I broke my own phone, but the problem is that its SIM locked to Vodafone IE.

When I got the phone, it was on 4.3. After following the SIM unlock guides, I kept running into problems because some menu items are missing. Specifically "[3]PERSO SHA256 OFF".

I did some Googling and saw a mention of the fact that the newer modem in 4.3 has these options removed. So this led me to try downgrade the ROM. The first thing I did here was TWRP/root/custom ROM, thinking that there might be some added options in a custom ROM. However, the ROM i Chose (Albe95 LolliROM) uses the hard menu button to display running tasks, so I couldnt perform the steps in the SIM Unlock guide. Then I tried other ROMs and an old CyanogenMod 4.2.2 ROM, but I didnt have any success. After more research, I found that the biggest mistake people make is not downgrading the modem. Now, I thought this wasn't possible once you go above a certain level, eg 4.3.
After more Googling, I found a link to an old modem, but the link gave me a 404!

I spent a lot of time on this, and just want the SIM unlocked, so figured I'd just ask the experts here.
So, can anyone just link me to the correct modem version for 4.2.2 and maybe a ROM that is compatible with the guide I linked earlier?
Once unlocked, I'll flash a new ROM so I'm on Lollipop again.

Thanks.


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