Help. Need to downgrade my Galaxy S2.

By Nimec
in Android Support

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Nimec

Posted
Posted

Hey guys,

We got the ICS upgrade here on Bell Canada for the Galaxy S2. All in all it didn't really make that much of a difference for my uses, however my 2011 Kia Optima with UVO no longer pairs successfully with the phone. I get constant messages on my phone that says Kia Motors (the bluetooth name for car) is requesting a phonebook download and it pops up continually whether I press OK or Cancel until I either turn off the car or delete it from the bluetooth devices list.

I am extremely unhappy that my phone no longer works in the car, and I want to revert back but of course you can't in Kies.

I am not familiar with using Odin or flashing custom roms, but I don't see that I have a choice as I need my phone to work through my car.

I'm hoping someone who is savy with Android can give me a hand here.

I downloaded the file GT-I9100M_BMC_I9100MUGKG2_I9100MBMCKG2_I9100MUGKG2.tar from http://sky******.net...d/download.aspx (sky wa nk er.net)( (Firmwares -> Carrier -> Bell). I got the link from http://forum.xda-dev...d.php?t=1113928, and although the link in that post didn't work, I am assuming I am selecting the right file here?

Do I just plug this file into the PDA section of Odin and that's it? Nothing for CSC or PHONE? The file is a tar.md5 and I can't seem to open it with 7zip so I'm not sure if I'm supposed to be extracting it or just plugging it into the PDA section of odin like I said.

Extremely nervous about breaking my phone, this ICS upgrade has been a horrible experience.

Thank you for anyone who can help me out.

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https://www.neowin.net/forum/topic/1075135-help-need-to-downgrade-my-galaxy-s2/
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DeadEndAccount

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Well I did it and now my phone is in a constant loop showing the Galaxy 2 splash intro over and over again. Think I broke it?

I can't even turn it off now.

I am so ****ed off.

You need to take it into your carrier and get it repaired. Are you able to give more details about your car - make/model/the headset unit?

Community Regular

Nimec

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Yeah, I am attempting to flash it again but figure it won't work. Taking out the battery and then putting it back in, then I can hold down volume, home and power to get into download mode.

The car is a 2011 Optima with Microsoft UVO in it, reading multiple forums before I attempted to flash it revealed lots of other people having problems with their BT connections in Uvo/Sync systems as well.

Grand Master

firey

Posted
Posted

Same thing, boot loop.

People say I should be able to hold down the volume down button and press power to get to a series of menus to perform a hard reset, but mine doesn't it goes right into "Odin Mode" and says downloading.

Did you clear everything I said?

Community Regular

Nimec

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I can't do a factory reset because it won't go into recovery mode (holding volume up + power)

It shows the Logo and then plays the video instead of showing my the android and box guy that I am supposed to be seeing.

Edit - Holding the home button down with volume up worked to get me into recovery mode.

It's doing a factory reset now. We'll see how it goes.

Edit 2 - It's working again, thanks guys for the help!

Grand Master

Anibal P

Posted
Posted

You need to upgrade your head unit, not downgrade the phone, there has top be a way of updating the OS on your car's head unit, considering it's a fairly new car, Kia might do it free, or should at least

You were lucky to get it to sync at all, MS's crap sync barely works with Windows Mobile/WP7, let alone any other mobile OS

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