[Q] Request for a guide for Sim Unlock w modem downgrade
I have seen these threads about sim unlocking, goto phone press *#0011# etc...
but mine doesnt work, so doing some research it seems i need to downgrade the modem do this unlock and then upgrade the modem.
Now as i only got my S4 yesterday i dont fancy bricking it, ( converted from iphone jalibreaking )
IS there is guide on doing this whole process including the downgrade and upgrade?
Im on o2 UK with S4, i can provide further details if it would help.
Thanks in advance
Samsung Galaxy S4 - o2 UK