[Advantage X7500, MDA Ameo Upgrading] cmonex:
well, so I found out how to fully automate the process. sorry for the waiting, I was busy with life & some diamond and shift stuff :)

you can now just run an EXE that does all the downgrading and the modelid/wifi restore. no manual lnbs needed.

Description:

this uses a special SSPL, should be also OK in place of the original AthenaWrapper (or Unlocker Step 1), but I recommend you only use it for downgrade purposes.

this package includes:

- NBH to flash back to HardSPL 1.20.Olipro. can be replaced with other SPL NBH's but only with ones that are older than SPL 3.xx are recommended. this is only designed for SPL flash however, do not try other NBH types.

- SSPL which automates the restoring of wifi and modelid, which otherwise would always get corrupt when downgrading from SPL 3.xx. do not try to use another SSPL or you will corrupt your modelid and wifi and you will have to use manual tools (the Athena MAC BIN generator that I wrote & posted earlier) to restore them.

- RUU tailored to these needs. do not try to use another RUU for this purpose. also do not try using this RUU for anything else.

- BIG WARNING: do not even try to run this for any device other than Athena (not even the x7510). (I had to remove all modelid checking.) I do not take responsibility for such moronity (or any other kind of moron actions).

STEP BY STEP:

0. flash AP3newSPL OS image in preparation: http://htc-hackers.com/uploads/ap3newspl.zip

1. make sure Athena is running WM and synced with Activesync. do not try entering bootloader mode manually at this point! the way the Downgrader works relies on this.

2. extract the downloaded zip from Attachment to this post, you'll find an SPLDowngrader.EXE inside. run that EXE on your PC, now Athena should go to tricolour screen saying OliNex SSPL.

3. let the RUU flash.

3-TroubleShooting: if the RUU won't see device, uncheck the advanced functionalities in usb-to-pc settings in settings on the Athena.

4. it will reboot and also will hard reset your device. you will need to flash an OS compatible with old SPL now. if you are not sure how to do that, see "Extra help" below. after that, job is done.

5. +1: you should verify the modelid and SPL version is correct (ATHE100 and 1.20.Olipro). see "Extra help" below on how to enter bootloader mode to check.

Extra help: steps to help with flashing an OS if someone never flashed from bootloader before:

0. do not freak out if the OS isn't booting after downgrade. depends on what OS was on it before. maybe you will only get black screen but do not worry, read further:

1. you should manually enter SPL, by holding camera key (ALL THE WAY IN!!) while resetting. hold it until tricolour screen appears.

2. then use some other RUU / ROM package to flash an OS compatible with old SPL. job done.

NOTE 1: if the exe doesn't run then download and install .net framework from microsoft.com.

NOTE 2: if you just want to restore stock SPL, you must do it this way:

1. flash with this downgrader, with unchanged package.

2. flash OS compatible with old SPL 1.20.Olipro. this can be a stock OS.

3. use usual methods to restore stock SPL. this must be the last step, run only after you've restored stock OS!!!

Planned:

- dedicated stock SPL downgrade package

- dedicated SPL 3.50 upgrade package

these are all available already, just need userfriendly EXE package.