What is Radio.img; why downgrades fail.

[OCM]

It's 05.15. Downgrading the bootloader to 04.CC allows downgrading the radio to the 1.1.x versions

[juanmre]

It's 05.15. Downgrading the bootloader to 04.CC allows downgrading the radio to the 1.1.x versions

Hi OCM,
If I'm understanding well, It seems that this is the answer for all of us who lost 3G by updating radio from TMobile. Could you please clarify?

Thanks in advance,
JM

[Denis_Dext]

Hi OCM,
If I'm understanding well, It seems that this is the answer for all of us who lost 3G by updating radio from TMobile. Could you please clarify?

Thanks in advance,
JM

Yes, please, help us with this difficult problem to live!

(Congratulations by the campaign of Americans in the World Cup)

[fogozito]

can someone post a guide or confirm this please?

[OCM]

To make this clear, the bootloader can not be downgraded (yet). Therefore, the radio can't either and thus everyone who lost 3G is stuck still.

In spanish for all spanish readers:

Para aclarar las cosas, no se puede usar un bootloader viejo ya que se actualizo al nuevo (aun no se ah creado un metodo). Por lo tanto, el radio tampoco se puede bajar de nivel y por ende todos los que perdieron el 3G cuando actualizaron su radio siguen atorados con ese radio (En otras palabras, no pueden recuperar su 3G aun).

[juanmre]

Thanks for the claricfication OCM...

[fedegin]

Hi! i'm from argentina and my new dext have *5025* radio, blur version 0.14.401 and rsdlite bootloader 1440, if it's posible i can take out the radio of my phone and we can try to build a new rom with de same radio 5025 latam version with the base band working!! Sorry for my english!

EDIT: my bootloader version is v05.15

[fogozito]

any news?

[Siarnaq]

Hi.

Im from mexico and was experiencing connectivity problems on my DEXT from TELCEL with the radio upgrade when i installed E2C.

After a lot of research i succesfully downgraded the radio.

Using RSD Lite i RE-FLASHED my DEXT with RAsRecovery.shx

Then reinstalled my original ROM (TELCEL that is) and VOILA!!!

Everything back to normal, everything worked fine for me, i cant guarantee it'll work for you.

But still let me know if i can help.

Cheers everybody.

[adlx]

Hi.

Im from mexico and was experiencing connectivity problems on my DEXT from TELCEL with the radio upgrade when i installed E2C.

After a lot of research i succesfully downgraded the radio.

Using RSD Lite i RE-FLASHED my DEXT with RAsRecovery.shx

Then reinstalled my original ROM (TELCEL that is) and VOILA!!!

Everything back to normal, everything worked fine for me, i cant guarantee it'll work for you.

But still let me know if i can help.

Cheers everybody.

Afaik, flashing E2C can't upgrade your radio, as it doesn't ship with radio. Your 3g problem with E2C may probably be APN issue.

Also, flashing RAsRecovery.shx, I'm not sure what shx you are speaking, but by the name one can guess it only flashes Amon_RA's recovery, so it won't downgrade the radio.

[Denis_Dext]

Hi.

Im from mexico and was experiencing connectivity problems on my DEXT from TELCEL with the radio upgrade when i installed E2C.

After a lot of research i succesfully downgraded the radio.

Using RSD Lite i RE-FLASHED my DEXT with RAsRecovery.shx

Then reinstalled my original ROM (TELCEL that is) and VOILA!!!

Everything back to normal, everything worked fine for me, i cant guarantee it'll work for you.

But still let me know if i can help.

Cheers everybody.

sure you could downgrade the radio?

[esposito]

what about the "time bug" ? can you send to us the current baseband?

[fogozito]

Hi.

Im from mexico and was experiencing connectivity problems on my DEXT from TELCEL with the radio upgrade when i installed E2C.

After a lot of research i succesfully downgraded the radio.

Using RSD Lite i RE-FLASHED my DEXT with RAsRecovery.shx

Then reinstalled my original ROM (TELCEL that is) and VOILA!!!

Everything back to normal, everything worked fine for me, i cant guarantee it'll work for you.

But still let me know if i can help.

Cheers everybody.

Flash Handler 1.5 and try to reflash to the original telcel rom

[lerg98]

Hi.

Im from mexico and was experiencing connectivity problems on my DEXT from TELCEL with the radio upgrade when i installed E2C.

After a lot of research i succesfully downgraded the radio.

Using RSD Lite i RE-FLASHED my DEXT with RAsRecovery.shx

Then reinstalled my original ROM (TELCEL that is) and VOILA!!!

Everything back to normal, everything worked fine for me, i cant guarantee it'll work for you.

But still let me know if i can help.

Cheers everybody.

I try to follow this steps and no luck, the DEXT is bricked, unbrick with the 1.3.18 ROM (update_BL_0x517_tmo-morrison-viper-1.3.18-P3-supermonster-customer.zip) and downgrade the radio from 5030 to 5025 but the DEXT(Telcel-MX) still without 3G.

[Skrilax_CZ]

Actually the old radio firmware (amss) is not working due to its integrity failure (secure version too low (0005, but 0006 needed since 1.3.18 preinstalled or flashed via SBF). Those who updated OTA (and can use the original root exploit via the 04.CC RAMDLD) however should be able to use the radio from old firmwares. Well if some of you guys can compile linux modules, dump the rest of the NAND flash memory (that is from 0x00000000 - first patition start) so the secure version partition can be overwritten and downgraded.