iPhone 3GS stuck in Recovery

[WaelT]

Greetings,
I have an iPhone 3GS used to run ios 4.2.1 with BB 6.15, also JB using RedSn0w0.9.6b6, anyway i messed with cydia and since then the phone is stuck in recovery mode with a black screen ..
I tried to downgrade to 4.1 using TinyUmbrella and Error 1015 "Since BB is different", TinyUmbrella should locate my iPhone and kick it out of recovery but it didn't see the phone at all, I tried iREB and it didn't work too..
Then I downloaded 4.3 b1 and restored, also I couldn't kick it out of this mode .. Also I tried some custom ios and none worked

Please provide me with any knowledge that can be useful

Thanks a lot in advance

 

[PsstGreek]

Greetings,
I have an iPhone 3GS used to run ios 4.2.1 with BB 6.15, also JB using RedSn0w0.9.6b6, anyway i messed with cydia and since then the phone is stuck in recovery mode with a black screen ..
I tried to downgrade to 4.1 using TinyUmbrella and Error 1015 "Since BB is different", TinyUmbrella should locate my iPhone and kick it out of recovery but it didn't see the phone at all, I tried iREB and it didn't work too..
Then I downloaded 4.3 b1 and restored, also I couldn't kick it out of this mode .. Also I tried some custom ios and none worked

Please provide me with any knowledge that can be useful

Thanks a lot in advance

Your iPhone rebooted I'm guessing after you downloaded an app from Cydia? After that you should have open up Redsn0w on your computer, checked boot tethered, go through the steps and your 3GS will turn back on.

Now, you need a custom 4.2.1 firmware with the iPad baseband to restore back.

 

[WaelT]

Now, you need a custom 4.2.1 firmware with the iPad baseband to restore back.

That sounds like a solution but ... Do you know any link that might be useful ??
Thanks a lot

 

[PsstGreek]

That sounds like a solution but ... Do you know any link that might be useful ??
Thanks a lot

https://forums.macrumors.com/threads/1060165/

In my thread, page 3 - post #59

 

[WaelT]

https://forums.macrumors.com/threads/1060165/

In my thread, page 3 - post #59

Thanks a lot pal you really saved me
It worked, but I don't know if that is weird or not , but I had to JB more than two times and also I had to select "Just boot tethered" around 10 times to get it working
In the end it worked ... Thanks

 

[WaelT]

I have a new problem
Now, when I press the sleep button at a random time, the iPhone goes off, just blank black.. And when I boot it "tethered" for the 1st time ... the screen goes blank white and I can hear the sound of the iPhone "I mean the sound when it finishs booting", I press the home button again and the screen goes crazy .. Colors are messed up badly and the screen positioning is totally wrongs. Anyway, when I re-do the "just boot tethered now" the iPhone works great agains !?!?!
What seems to be the problem here ?!

Thanks in advance

 

[PsstGreek]

I have a new problem
Now, when I press the sleep button at a random time, the iPhone goes off, just blank black.. And when I boot it "tethered" for the 1st time ... the screen goes blank white and I can hear the sound of the iPhone "I mean the sound when it finishs booting", I press the home button again and the screen goes crazy .. Colors are messed up badly and the screen positioning is totally wrongs. Anyway, when I re-do the "just boot tethered now" the iPhone works great agains !?!?!
What seems to be the problem here ?!

Thanks in advance

That, I have never head before, about the iPhone going insane. Restore the iPhone using the custom ipsw and jailbreak again.