Hello everyone,
Firstly I'd like to start by saying that I feel like the biggest idiot on the face of the earth.
Not only am I quite "tech-savy", but I've rebuilt, taken apart and tinkered with most electrical gadgets under the sun. However, my latest ridiculous blunder has left me kicking myself. 
Basically, several years ago my brother gave me his iPhone 3GS which had been jailbroken to iOS 3.1.3 to use out here in Taiwan. (The iPhone is from England.) After several years and getting annoyed at not being able to download apps on iOS 3.1.3 etc, I decided to go on a contract out here and get an iPhone upgrade.
Yesterday and completely failing to remember that the phone had been jailbroken/hacktivated in the first place, I decided that it would be a super-smart idea to go and connect my phone to iTunes and update the iOS to 6.1.3

(Yep, that's smart for you. Everyone laugh now!)
Anyway, needless to say things didn't go well. At the moment my old iPhone 3GS is stuck on what I like to call 'The Grey Screen of Death!' It wants a valid sim. But, I have no idea what service provide my brother used in the U.K. and to be honest I have no interest in calling the U.K. from here too.
Can I use redsn0w or TinyUmbrella with a SIM card from Taiwan to "reactive/downgrade" my iPhone? I do have iOS 4.1. and 6.0 saved to blobs. Will that help? (The reason I ask this is because I have the programs downloaded, but haven't used them before.)
I really don't want to turn my phone into a glorified iPod. It defeats the purpose of the phone function. I've read around this site and threads, but I couldn't find anything specific.
I really can't get over my stupidity...
If anyone has anything constructive to aid me in my plight, I'd be most grateful.
Regards to all,
Monkeynuts*
Firstly I'd like to start by saying that I feel like the biggest idiot on the face of the earth.
Basically, several years ago my brother gave me his iPhone 3GS which had been jailbroken to iOS 3.1.3 to use out here in Taiwan. (The iPhone is from England.) After several years and getting annoyed at not being able to download apps on iOS 3.1.3 etc, I decided to go on a contract out here and get an iPhone upgrade.
Yesterday and completely failing to remember that the phone had been jailbroken/hacktivated in the first place, I decided that it would be a super-smart idea to go and connect my phone to iTunes and update the iOS to 6.1.3
Anyway, needless to say things didn't go well. At the moment my old iPhone 3GS is stuck on what I like to call 'The Grey Screen of Death!' It wants a valid sim. But, I have no idea what service provide my brother used in the U.K. and to be honest I have no interest in calling the U.K. from here too.
Can I use redsn0w or TinyUmbrella with a SIM card from Taiwan to "reactive/downgrade" my iPhone? I do have iOS 4.1. and 6.0 saved to blobs. Will that help? (The reason I ask this is because I have the programs downloaded, but haven't used them before.)
I really don't want to turn my phone into a glorified iPod. It defeats the purpose of the phone function. I've read around this site and threads, but I couldn't find anything specific.
I really can't get over my stupidity...
Regards to all,
Monkeynuts*