Good way to backup WiMax RSA keys. Works before Rooting, and on stock OEM Roms.

[BooDaddy]

leerage,
The guide you posted from XDA is the same guide I used to root my Evo after I saved my RSA keys. Its a very good rooting guide, and I highly recommend it!

[leerage]

Originally Posted by BooDaddy

leerage,
The guide you posted from XDA is the same guide I used to root my Evo after I saved my RSA keys. Its a very good rooting guide, and I highly recommend it!

Definitely. The guide is pretty straight forward. When I got my Evo back in early December, there wasn't the method of backing up the RSA key (at least in the guide). Everything went smooth though and I got my Evo rooted. Just now backed up my RSA key and all is good.

Originally Posted by leerage

This makes a copy of your unique 4G RSA Key. Without it, you wouldn't be able to access 4G. If you have HBOOT 2.02/2.10, I hope you used:

[ROOT][GUIDE] HBoot 2.02/2.10 SOFF - The Savior Edition - Upd. 12.26.10 - xda-developers

As methods like Unrevoked aren't coded for the other partitions (that contain your 4G RSA key) and will ruin 4G permanently for you on that Evo.

Do you suggest making this copy before I do this?:
[ROOT][GUIDE] HBoot 2.02/2.10 SOFF - The Savior Edition - Upd. 12.26.10 - xda-developers

[leerage]

Originally Posted by Jim8181

Do you suggest making this copy before I do this?:
[ROOT][GUIDE] HBoot 2.02/2.10 SOFF - The Savior Edition - Upd. 12.26.10 - xda-developers

That tutorial has the instructions on how to copy the RSA key before rooting/NAND unlock. I would go ahead and do it when you start the process of rooting your phone. When I rooted mine, that wasn't in the tutorial... but I didn't have any issues.

[carlitos]

Originally Posted by leerage

This makes a copy of your unique 4G RSA Key. Without it, you wouldn't be able to access 4G. If you have HBOOT 2.02/2.10, I hope you used:

[ROOT][GUIDE] HBoot 2.02/2.10 SOFF - The Savior Edition - Upd. 12.26.10 - xda-developers

As methods like Unrevoked aren't coded for the other partitions (that contain your 4G RSA key) and will ruin 4G permanently for you on that Evo.

ok it back up your rsa key. but for what? why do u need. in what case are you gonna need it. do u have to restore it back someday ??? idk some explanation please if im not asking too much..

[Fam Money]

Thanks OP. Now I guess the next logical question is how do we restore the keys from the backup?

[leerage]

Originally Posted by carlitos

ok it back up your rsa key. but for what? why do u need. in what case are you gonna need it. do u have to restore it back someday ??? idk some explanation please if im not asking too much..

It is a unique key to your phone. I'm not sure how you would come about it that you would need to restore it... but who knows. Maybe some freak accident flashing or updating a radio and it wiped out the 4G RSA key... you would be without 4G. It is easy to run the commands so why not do it?

It is pretty simple:

Evo + RSA Key = 4G

Evo w/ no RSA Key = No 4G

[ctbenko]

Im having issues and am in need of major help, neither command works for me on my rooted Evo. i have titanium backup which installed busybox for me.

However i get both sed not found and busybox not found when i try the commands in adb or from a terminal app.

Any help would be great bc i need to have my 4g rsa keys backed up. Thanks

[rcubed3r]

This would only work with me when I removed the space between 'rsa' and 'OEM.key'

Thank you!
Ron

[TheBundo]

The rooted way worked great for me. Fast and easy, saved to PC and Dropbox