iOS 6.1.3 na po ang last official update para sa iPhone 3GS, sir. Kung gusto ninyong mag-update, i-connect niyo lang po via USB cable ang inyong 3GS sa computer then open/run iTunes. Made-detect ng iTunes ang connected na 3GS device and it will prompt you to update it to iOS 6.1.3. Kailangan niyo lang po ng stable internet connection para ma-download ng iTunes yung software update file for your 3GS. Depende po sa speed ng inyong internet connection ang itatagal ng update process sa iTunes.
Or better yet po, i-download niyo na lang po manually yung 6.1.3 IPSW:
Code:
[URL]http://appldnld.apple.com/iOS6.1/091-2371.20130319.715gt/iPhone2,1_6.1.3_10B329_Restore.ipsw[/URL]
Use a download manager/accelerator (like IDM) para mas mabilis/resumable yung download ninyo.
After ninyo ma-download yung IPSW, puwede niyong ilagay ito sa directory na ito on your computer:
---> if you are using XP - C:\Documents and Settings\<User>\Application Data\Apple Computer\iTunes\iPhone Software Updates
---> if you are using Vista/7/8 - C:\Users\<User>\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates
After ninyo makapag-restore to iOS 6.1.3, read & follow this tutorial po to "hacktivate" & jailbreak your iPhone 3GS --->
[TUT][UN/TETHERED]Jailbreak/Hacktivate iOS6.0-6.1.3 iPHone3GS/4 (A4 Devices Only)---> if
old bootrom ang 3GS ninyo, it will have an
untethered jailbreak on iOS 6.1.3
---> if
new bootrom ang 3GS ninyo, it will have a
tethered jailbreak on iOS 6.1.3
*To check the bootrom version of your 3GS, you can use
iDetector po.
After you have jailbroken po your 3GS, kailangan niyo pa po itong i-unlock with ultrasn0w. Ano po ang
SERIAL NUMBER ng inyong iPhone 3GS, sir? Kailangan po natin malaman if it is safe to flash the 06.15.00 iPad baseband on your 3GS.
Hope this helps po.