Help Perm root/temp root the Gingerbread OTA WITHOUT downgrading

[supdeva]

Earlier i perm rooted my mytouch 4g(tmo froyo) with the guide found here
TMobile myTouch 4G: Full Update Guide - CyanogenMod Wiki

later I installed the leaked upgrade for gingerbread found at
[ROM]Glacier_Gingerbread_S_TMOUS_2.19.531.1_Radio_12.58 .60.25_26.11.04.03_M_release - Page 3 - xda-developers

now when I try the same rooting method using psneuter i get the message

Failed to set prot mask (Inappropriate ioctl for device)

I searched around and these are alternative methods I found
1) you have to use gingerbreak instead of psneuter for gingerbread
2) Use Visionary
3) Downgrade to Froyo and then root and install a rooted ROM.

Is anyone working on a way to root the OTA gingerbread without downgrading or is it something that is impossible to do? If i can avoid it i don't want to downgrade.

 

[vnguyen972]

I ran into the same issue and haven't found anything possible so I downgraded... not so hard to do... so I did it.

 

[duckman748]

vnguyen972, what methods did you use?

I have tried a few and just can't seem to get it all to work.

Links to the guide you used would be great

Thanks.

What rom did you install after?

Duckman748