After I updated thru Cydia TODAY:
After a Respring (asked by Cydia), my device was very slow. I rebooted. So, from that point, stays on Apple Boot Logo forever, and after some time reboots again.
So, how do I DOWNGRADE all the updates above? Or just Mobile Substrate? Without a restore.
I tried by SSH, nothing. I tried i-FunBox, nothing (it doesnt recognizes my device).
Please help. Thank you!
For new people reading this thread, here is a solution that may help you boot up your iPhone:
In Mobile Substrate version 0.9.3997 (released on April 16, 2012), there is a new feature I would recommend trying:
In other words, just force a reboot (by holding down the power and home buttons) and then immediately hold down the Volume Up button as the device boots up. Hopefully it'll help you get into Cydia and uninstall the tweak that caused the problem. Also check this guide in the JailbreakQA FAQ for more advice on fixing devices that won't boot up properly.
If you haven't updated Mobile Substrate yet, or if you just want to try this older method covered in this thread, here is a expansion of saurik's instructions below. It should work for both Mac and Windows users:
here's my solution iphone 3gs 4.3.3 i kept uikit 1.1.3 removed mobile substrate 3995 and installed the old one 3991
sbsetting is working finally
answered 18 Jan '12, 12:03
I do fresh install after crashing because of update Mobile Substrate from 0.9.3901 to 0.9.399. I restore with my custom IPSW made with sn0wbreeze for my iPhone 3GS (factory lock). because I must software unlock to activate my iPhone. I install SAM from cydia, when installing this also install mobile substrate(package dependencies) after this the phone crash again and only apple boot loop which happen. need your solution for this, ihope you can fix the mobile substrate, because now icant use my phone.
answered 24 Jan '12, 15:26
But even on recovey mode, how do you manage to UPDATE?
I only option that I have on recovey mode is RESTORE.
answered 29 Dec '11, 11:27
Do you have afc2add installed?
answered 29 Dec '11, 12:08
iPhone 4 on 4.3.3...
I also had a bootlogo loop after upgrading Cydia Installer, UIKIT Tools, and Mobile Substrate.
I ended up restoring to 4.3.3 and re-jailbreaking. I did a restore of packages by PkgBackup and apps by iTunes, and it got stuck at some point in a bootlogo loop again.
I re-did a restore to 4.3.3 and re-jailbroke, and now installing all apps and packages one by one as I write.
I didn't want to upgrade to 5.0.1 because there are packages and themes I like that do not work on 5.0.1.
It was a long night and still going through a long day (and night).
Some updates are better left alone. :-(
answered 29 Dec '11, 12:30
Today, I updated my iPad 2 on 4.3.3 (via jailbreakme) with mobile substrate/ui kit and am having the exact same prob...nothing but bootlogo. Never a prob before today. saurik, I read your 0-5 above and it doesn't apply to me. I'm trying to save 500 photos that haven't been backed up. Does anyone have any ideas on how to get in? I'm trying to try the /etc/launchd.conf thing or maybe reinstall an earlier MS.
answered 29 Dec '11, 23:43
Hello, I had the same problem, I updated the cydia "essentials" and now im stuck at the apple logo, my iphone 4 is jailbraked using the website jailbreakme.com. I am having a really hard time understanding how to fix it,I do not want to restore and update :S
Some people are saying something about "RAMDISK SSH", some about "redsnow" im really confused as I am not good at software stuff, I tried using the redsnow step but when i get to the screen I cannot click the "next" button despite the iphone being turned off and plugged in, and after I do the DFU method is not doing anything either. I wish someone could help me, or explain in more detail?
Thanks in advance, I appreciate your help
answered 30 Dec '11, 16:40
is it necessary to update mobile subtrate from 0.9.3901 to 0.9.3995 if I am on a ipod touch with 4.3.3 jb redsn0w 0.9.6rc15? Does it improve anything if I am on 4.3.3 and not iOS 5? After hearing about all those problems I am not sure if I should update to 3995.
sry for bad english
I updated my Cydia Packages yesterday, (Cydia Installer, MobileSubstrate and 3 other), rebooted my device and now It's stuck on Apple Boot Logo for Hours, tried Hard Reset 4 times ;( No results...
I Have an iPad 2 64 GB Wi-Fi, running on 4.3.3 with Jailbreakme 3.0.
I figured out I cant use any of the Methods above (The saurik's one with Redsn0w and Camilio's one with RAMDISK) because I have a A5 CHIP.
I can't afford to loose my data, and I dont have any Backup. But I can restore once I get my data back and wait for 5.0.1 Jailbreak.
I need help guys.
answered 07 Jan '12, 07:56