• XDA Forums have been migrated to XenForo. To discuss, report bugs and other issues, use this thread.

[TUT] How-to: downgrade SPL, flash XSPL, flash Custom ROMs & Radios

sh4d0w86

New member
Apr 15, 2010
1,761
795
0
begin here
  • find out device's Bootloader version. Settings -> About -> More Info
  • make sure device's battery is greater than 60% before proceeding.
  • download task 00 and task 29, here and extract contents.
  • note. USB drivers may need install. e.g. Active Sync / Windows Mobile Device Center
  • continue to next Step according to Bootloader version...

    instructions to downgrade OSPL

    if Bootloader version is 5.xx
  • a. for those with a Pre-Mango Zune Backup,
    - see Zubair Kirmani's thread, here.
    b. for Europe devices,
    - see ansar.ath.gr's thread, here.
    c. for everybody else,
    - try Y-Cable method here
    - or Goldcard method here.

    if Bootloader version is 4.xx
  • download non-Test NoDo or Pre-NoDo Radio specific to your device, here.
  • extract the contents of the 7-zip.
  • turn off device. then while pressing the volume down button, boot your device.
  • device should be in Multi-Colored screen, which says 'Serial' in the white section.
  • connect device via USB to PC
  • device should now say 'USB' in the white section.
  • in the 'stock' folder of the extracted Radio, flash SPL_Signed.nbh using task 00.
  • note. this will also downgrade the Radio, as well as the SPL.
  • once flash successfully finishes, disconnect device from USB.
  • repeat Steps #1, #2 & #5.

    instructions to install RSPL

    if Bootloader version is 3.xx or 2.xx or 1.xx
  • download XSPL, here.
  • extract the contents of the rar.
  • run DFT_RSPL..._LAUNCH.exe
  • please, read information text. select 'Next' button.
  • power off device and enter Bootloader.
  • connect device via USB to PC, 'Serial' will change to 'USB' once connected properly.
  • select 'Next' button on the XSPL wizard and it should now detect your device.
  • note. do not proceed if OSPL is 5.xx or 4.xx, instead go to Step 05.
  • select the closest OSPL, on the wizard, to the one on device.
  • select 'Next' button. wait until wizard proceeds to final page. read and close window.
  • note. device must boot into Bootloader.
  • if Bootloader reads RSPLX.Y.Z and CotullaRSPL, then RSPL was successful.
  • continue to Step #30 or #38.

    instructions to install HSPL
    if RSPL'd and HSPL is desired
  • make sure RSPL wizard is closed.
  • run DFT_HSPL..._INSTALL.exe
  • please, read information text. select 'Next' button.
  • device should already be RSPL'd and connected to PC, still.
  • select 'Next' button. wizard should detect your device.
  • select HSPL, then select 'Next' button. wait until wizard proceeds to final page.
  • read and close window, then disconnect device from USB.
  • enter Bootloader on device, if it reads HSPLX.Y.Z and CotullaHSPL, then flash was successful.

    instructions to install a Shipped or Custom ROM

    if a different OS is desired
  • download ROM of choice. Shipped ROMs are available, here.
  • extract RUU_Signed.nbh (if Shipped ROM) or RUU_Unsigned.nbh (if Custom ROM).
  • note. flashing a RUU_Signed.nbh will also replace device's R/HSPL to OSPL of ROM.
  • bring device into Bootloader and connect to PC via USB.
  • flash extracted *.nbh using task29.
  • once flash successfully finishes, disconnect device from USB.
  • enjoy new ROM.

    instructions to install a Radio

    if a different Radio is desired
  • download the Radio of choice, here.
  • extract the contents of the 7-zip.
  • boot device into Bootloader and connect to PC via USB.
  • flash RUU_Unsigned.nbh from 7-zip with task00.
  • after flash successfully finishes, disconnect device from USB.
  • enjoy new Radio.



note. if links are down, please let me know, will reupload.

disclaimer. i hold no responsiblity for one's actions and the result of one's device because of those actions.
 
Last edited:

iKarido

New member
Apr 27, 2011
187
73
0
thanks alot man this really helped me out!
I just got my phone and it has these:
OS: 7.0.7392.0
Radio software: 5.65.09.25a_22.45.50.21U
Bootloader: 3.1.2250.0
(btw its from T-mobile)
So I should be following the instructions to install RSPL and It lookss easy.
but what about my OS? can I leave the OS as it is and install one of these custom roms:
DFT's Freedom.
dotcompt's DeepShining.
itje's Touch-It.
Or do I need to update to Stock mango first?
Finally, what are radios for and should I flash a new one? if so what should I flash.
sorry about all these questions but its my first time having a WP and I dont want it to break from day one :D
 

sh4d0w86

New member
Apr 15, 2010
1,761
795
0
thanks alot man this really helped me out!
...
So I should be following the instructions to install RSPL and It lookss easy.
but what about my OS? can I leave the OS as it is and install one of these custom roms:
...
Or do I need to update to Stock mango first?
Finally, what are radios for and should I flash a new one? if so what should I flash.
sorry about all these questions but its my first time having a WP and I dont want it to break from day one :D
you should click the Thanks button, instead of thanking me in a post. : )
and you are welcome. glad i can help.

yep, with Bootloader version 3.1 start with RSPL.
when you flash a Custom ROM, it will be replace your current OS and Radio, if included with Custom ROM.

Radios give you your signal... so, a different Radio could help give you a strong signal in places.
 

1milenia

New member
Jan 15, 2009
729
23
0
i tried task 29
and it says the update utility can not open the requested file
check your update utility

my phone is a tmobile hd7
my pc is vista zune recognises my phone though
 

1milenia

New member
Jan 15, 2009
729
23
0
i want downgrade the mango 7720 to nodo
so i can rspl/hspl then download a rom

my problem is i downloaded your task 29 unzipped and ran it pluged in my hd7 and went through the utility and at the end it said
and it says the update utility can not open the requested file
check your update utility
 

sh4d0w86

New member
Apr 15, 2010
1,761
795
0
i want downgrade the mango 7720 to nodo
so i can rspl/hspl then download a rom

my problem is i downloaded your task 29 unzipped and ran it pluged in my hd7 and went through the utility and at the end it said
and it says the update utility can not open the requested file
check your update utility
i never uploaded anything. just provided links to the original source threads.
what did you download to downgrade your SPL?

sh4d0w86.
 

1milenia

New member
Jan 15, 2009
729
23
0
im sorry flash....im basically trying to get an spl of 1x or 2x or 3xxxxx
my spl is 4.5 so i have to downgrade
but im haveing problem with task29
 

sh4d0w86

New member
Apr 15, 2010
1,761
795
0
What's the difference between RSPL and HSPL?
RSPL is a temporary SPL, which allows the install of an Unsigned.nbh, then returns to OSPL afterwards. aka after a reset.

HSPL is a permanent SPL, which allows the install of an Unsigned.nbh, but doesn't change to OSPL until you flash it back.

sh4d0w86.
 
  • Like
Reactions: hardik_hrc

sh4d0w86

New member
Apr 15, 2010
1,761
795
0
I have a question!!!
it's possible to replace the update files (or backup file) for windows phone 7 on zune for install cooked rom for people that have halfbricked bootloader?
i don't believe so, no.
and if one could... it would probably more trouble than it's worth.

My god did we need this. never flashed my device till now. Thank-You
glad i could help.
and welcome to the 'Customized ROM world.'
a bit lame that you don't follow your own signature, though. : /

sh4d0w86.
 
  • Like
Reactions: hardik_hrc

KayxGee1

New member
Jul 28, 2011
630
65
0
Totowa
I followed these steps myself. It took a total of 20 minutes to RSPL, HSPL and install and a custom rom (DeepShining Mango). Every great guide for noobies. Although, I must point out that you do not have WMDC stated in the guide. I got a little side tracked by that.
 

sh4d0w86

New member
Apr 15, 2010
1,761
795
0
I followed these steps myself. It took a total of 20 minutes to RSPL, HSPL and install and a custom rom (DeepShining Mango). Every great guide for noobies. Although, I must point out that you do not have WMDC stated in the guide. I got a little side tracked by that.
what is WMDC?
could you point out the Step number?

sh4d0w86.
 
Our Apps
Get our official app! (coming soon)
The best way to access XDA on your phone
Nav Gestures
Add swipe gestures to any Android
One Handed Mode
Eases uses one hand with your phone