[8125, K-JAM, P4300, MDA Vario Software Upgrading] zabardast_1:
Mmmm ! A little :confused:

"If you have a G4 device DO NOT FOLLOW THESE INSTRUCTIONS, YOU WILL BRICK YOUR DEVICE!!"

'Can't see How The 3.08 could brick a device, even if it 's a G4'

First,with all my due apologies,no harm meant towards anyone just to update my own knowledge and fickling,tickling mind :p

Well it's true for G3 devices,3.08 can be upgraded to G3 with no problem,it wud not brick it,so many guys have done it, BUT G4.... I have my reservations,due to it's different DOC nomenclature.

G3 and G4 DOC Version Nomenclature Comparison :-

A G3 DOC chip version has:

IPL: 1.xx or 2.xx or 2.xx.00x (this version only has TWO 0's.)

SPL: 1.xx or 2.xx or 2.xx.00x (this version only has TWO 0's.)

A G4 DOC chip version has the following:

IPL: 2.xx.000x (this version has THREE 0's.)

SPL: 2.xx.000x (this version has THREE 0's.)

Difference in TWO 0's and THREE 0's marks the major change in these two DOC chips.IPL/SPL are initls commands for the boot loader as to how load up the OS.Just as CMOS or BIOS of a motherboard of a PC. Yes ! 3.08 being 1.xx can be upgraded to G3,but G4 being 2.xx.000x and yet to observe any 3.08 as 3.08.000x,of course,if there was one than it cud easily be upgraded to G4 DOC chip.

This is why we cannot flash any 1.xx custom rom like Button's Rom 1.05,wizard_love,xda_mini_,T-mobile 2.26 etc etc, directly to unlock a G4 device,thus not been able to unlock it till now as G3 can easily be unlocked.

It's just the same as with simple upgrading of Radio Roms version 2.19.11,2.69.11 or any 2.xx.xx etc,which doesn't even include any new OS, Extended Rom or IPL/SPL,it's only a small file of couple of kb's but cannot be flashed to any OS aku1 version having ipl/spl 1.xx,we have to upgrade to OS aku2 version in order to upgrade to radio rom 2.xx.xx.

Therefore, a Custom Build Rom containing IPL/SPL is not considered save for flashing to G4 devices.Although we are flashing Custom build roms to G4 devices here,but in a different method,of course,due to the excellent programs like "softSPL , HardSPL & ShellTool" developed by brilliant developers of xda-forums by which the device is tricked to believe it has SuperCID but not permanently unlocked the way G3 gets,but as long as it gets,fine.That is why cookers are cooking new rom without IPL/SPL to make it safe for upgrading to a G4 device.

It has been observed in a couple of forums that this change of DOC chip from G3 to G4 was done on purpose as it worried the Manufacturer's that G3 was easily being unlocked and upgraded so to stop this practice and make it hard to unlock,Even the Official Microsoft WM Roms do not contain any IPL/SPL,it's left at the discretion of the Manufactures to make it viable according to their own requirements.

Anyhow,might be the theory has changed of upgrading any IPL/SPL to any DOC chip and it's not in my knowledge,If it's true,than it's a GRRRRR8 news for everyone

Yes,of course, one can upgrade to 3.08 straight after unlocking or even I think,to locked devices but only devices with G3 DOC chip,I'm sry,it's not in my little knowledge if some one with G4 has upgraded to 3.08,well I'm unaware of it,i'll have to check it and confirm,I may be at lose here.

It's just my own unworthy opinion, I wud be highly grateful to Dr.Puttingham or anybody to correct my this misunderstanding, that "if I think it's not correct to upgrade to IPL/SPL 3.08 to G4 devices" Well ! As you say Doc,Putts thats me,lol

CHEERS