Anyone have ios 5.0.1, 5.1 firmware with perserved baseband 1.59 (iphone 4)

[jwf85]

currently I am on ios 4.0.1 with baseband 1.59

I am wondering if it's possible to update and keep the baseband at 1.59 thru snowbreeze by preserved baseband and custom ipa firmware.

Would there be any problems or issues having ios 5 with baseband 1.59. I want to keep my phone unlocked for tmobile.

[overdrive31]

Yes you can update using sn0wbreeze, sn0wbreeze always preserves the baseband, and now it also untether jailbreaks 5.1.1

There are problems with the old unlockable 1.59 BB and 5.x firmwares, mainly a single signal bar showing even when getting a full signal, when you install Ultrasn0w fixer 5.1.1 and then Ultrasn0w it should fix the stuck signal bar problem. Actually, until Ultrasn0w is updated to 1.2.6 to support 5.1.1 it will not fix the signal bar problem. It works on 5.0.1, but not 5.1 and 5.1.1

The problem is completely cosmetic, but can be annoying, I say update and if you can't fix it and it gets on your nerves, you can always downgrade back to 4.x using SHSH blobs.

If you have the apticket and blobs for 5.0.1, you can use Redsn0w to stitch a custom NO_BB 5.0.1 firmware that works with Ultrasn0w to fix the glitch.

[Munchy]

I'm running 5.1.1 on my iPhone with a preserved 1.59.00 baseband.

I went from iOS 4.1 to 5.1.1 by making a custom IPSW with redsn0w and then restoring via Pwned DFU.

I have the problem with the signal bars, but thankfully I found this thread! I'll keep an eye out for an Utrasn0w upgrade, since the fixer would unlock my phone, but not fix the signal bar problem.

[Munchy]

Speak of the devil, Ultrasn0w 1.2.7 released today!

[overdrive31]

Be sure to uninstall Ultrasn0w fixer before the update or your signal bars will not be corrected.