Originally Posted by TPD-21
I guess you have to guide him to do the installation Stock ROM JB, Senior.
Maybe he do not want Stock JB ROM.
BTW to save time:
Download JB firmware from sammobile.com or samsung-updates.com, DOWNLOAD IT FOR YOUR PHONE MODEL - IF YOU HAVE I9070 THEN I9070, IF YOU HAVE I9070P THEN I9070P FIRMWARE - OTHERWISE YOU WILL HARDBRICK YOUR PHONE
When you downloaded it unpack it if it is zipped, if it is in tar.md5 then you can use it without unpacking.
Guide for using Odin (with Odin link) is here http://forum.xda-developers.com/show....php?t=1985398
zip of it is password protected, you do have password on that page.
After that do factory reset if you get in a bootloop.
For CWM, download CoCore with CWM from here: http://forum.xda-developers.com/show....php?t=2140597
Unzip it, transfer kernel.bin.md5 to phone, install Universal kernel flasher
and some root explorer like ES file explorer. Install kernel.bin.md5 from Universal kernel flasher reboot, and you have CWM on JB.
That is if you want JB and CWM on it. For GB - we do not have permanent CWM, only TWRP