[Complete Tutorial] Install Custom ROM Nokia Lumia 800 with DLOAD or Qualcomm

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Josh800

Josh800

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Apr 3, 2022
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unfortunately i have a DLOAD Lumia 800 and encountered the same problem of "unknown lumia" detected by chimera.
now it strikes me merely to fetch a second-hand lumia with rainbowmod installed.
does any one have it, willingly for sale, please contact me.
heres my email: [email protected]
many thanks!!!!!

ive been always fascinated with this phone, how beautiful is the zune ui when playing music, with mpatool used to add the picture of artists respectively as background. in the past i had my phone developer-unlocked, but having recoveried, the registration lost. desperately i found Microsoft now turned off the server for new unlocking. so if your phone isnt running rainbowmod but developer-unlocked, it's perfectly ok as well.

its the story between lumia 800 and i. i sincerely hope you would do me a favor. thank you again!
 

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mike-2x

New member
Jan 1, 2023
1
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Happy new year everybody!
After years and years of searching, I managed to find the digitally signed .cert file for flashing the Qualcomm bootloader to all DLOAD RM-801 Lumia 800s (doesn't work with the RM-819 Lumias, unfortunately). I packed it up as a .esco file, together with the Qualcomm bootloader, and it works! To unlock your phone, just do the following:

1. Get all the drivers and NSS Pro (see first post)
2. Open NSS as administrator (otherwise you can't flash a custom OS)
3. Extract and copy the attached .esco file to /loaders/special/wp7 that is created after opening NSS for the first time
4. Connect your phone and make sure it's detected
5. Click on Flashing -> WP7 Tools -> Install
6. Do NOT format your phone's memory if a window pops up, it would destroy its system and the phone would never turn on again. Just click on "Cancel" or close the window
7. Enjoy!

In case of driver problems, try installing Zune and Nokia Care Suite:
https://archive.org/details/zune-package_202207
http://www.mediafire.com/?d53a76x4b59p75l

To flash RainbowMod and fully unlock your phone so you can install apps (warning: it will erase all user data on your Lumia), download it, extract the .nb file, and flash it using NSS (see first post).
https://mega.co.nz/#F!s9YX2KTT!VtsWY3NbGaN0-xqeQwQgdA

To deploy .xap files, install the Windows Phone SDK and use its XAP deployer ("Application Deployment"). You can extract the .iso (using WinRAR or something) and just launch the installer by opening WCU/WindowsPhone/WPSDK_[language].exe. Zune (download link above) must be installed, connected to the phone, and running during application deployment; otherwise, you will get error 0x89731811 (or similar).
https://archive.org/details/WindowsPhoneSDK71_iso

Now getting apps is a nightmare to say the least. Even if you find a .xap that should be compatible with WP7, if it was extracted from a WP8 device, it won't work. You can install it, but when you launch it, it says something along the lines of "(app name) license is invalid. Please purchase the app." This has nothing to do with licencing (it's just MS trying to scare you), and everything to do with how WP8 works: When you download a WP7 app, it gets (irreversibly) converted into a native WP8 app before installation, making it work on WP8 but not on WP7 anymore. This "conversion" generates a "MDILFileList.xml" file inside the .xap file, so if you see this inside a .xap (opening it with WinRAR for instance), forget it, it won't ever work on a WP7 device. Deleting the file will of course do nothing, since it's a symptom, not the cause :)

There is a site (in Russian) which archived tons of apps for WP7, but most of their links are broken, sadly:
https://wp-seven.ru/tag/wp7-apps
(especially the Nokia Bluetooth share thing is very useful)

You may wanna paste the URL from above into this translator tool:
http://itools.com/tool/google-translate-web-page-translator

That's the best I could find. Sadly, WP7 app preservation is in a terrible state, and if it wasn't for a few fine folks, we would have literally nothing.

Either way, good luck and have fun!
 

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    Dev.YoungBoy
    Nokia Lumia 800 - First Complete Tutorial for Installing Custom ROM on Lumia 800 with DLOAD or Qualcomm
    Windows 7/8

    Thanks to Lordmaxey, MarcHoover and Dengel!
    Also big thanks to the Chimeratool developers :)

    Authors are not responsible for any damage to your device!
    Everything you do is on your own risk!

    Following this tutorial is your own risk. During the process, your phone will lose all data (game data, apps, photos, music etc.). Make sure to a thorough backup before you start (for example using Zune for music and videos).

    Remember to download my folder (NokiaLumia800) from: https://www.dropbox.com/s/1zoh2kzv6kzki53/NokiaLumia800.zip, and extract it! :)
    See bottom for FAQ. Will try to update frequently if there happens to be some common errors! :eek:

    Backup Lumia
    Backup Contacts:
    1. Add a windows live id (Settings/Email/AddAnAccount/WindowsLive)
    Backup Game Achievements:
    1. Open Xbox-Live. Settings/Sync all items
    Backup of all data (apps, messages) except Zune content (music, video):
    1. Install .NET 3.5, Zune 4.8.2345.0 and Windows Phone Support Tools
    a. You will find Windows Phone Support Tools in the folder (64bit and 32 bit)​
    2. Extract Wp7EasyBackup, and run application
    3. Click on backup, and backup… (Don’t worry if your Nokia gets an image of a charging cable between pc and mobile)
    13353291063_96675c5452_o.jpg

    4. When finished your Nokia will turn on and you get an error massage (don’t worry)

    Your Backup will be stored here: %localappdata%\Microsoft\Windows Phone Update\
    Make sure to save it, if you want your old stuff on the phone


    Warning. The Backup Process could lead to a failure on custom Roms! (Zune updates need to be supported by your custom rom)
    RainbowMod 2.2 for Lumia 800 is not supported
    When you have installed the Custom Rom:
    1. Open WP7 Easy Backup Tool
    13353524564_2e257b7548_n.jpg

    2. Click Next, then click Restore
    13353524734_6b049905b9_n.jpg

    3. This can take a while
    ​
    STEP 1 – Dload or Qualcomm
    First, check if you have Dload or Qualcomm on your Lumia 800:

    1. Turn off your Lumia 800
    2. Hold Power + Volume up, wait to it vibrate
    3. Connect it to the computer
    4. If your pop-up says NOKIA DLOAD go to STEP 2
    5. If your pop-up says QUALCOMM go to STEP 3
    a. Remember to hit cancel on format disk:
    13353291393_e8dc51c4b9_n.jpg

    NOT a pop-message:
    13353291463_cd41d89ccc_m.jpg

    Right click on Safely Remove:
    13353525004_5ecfd38293_m.jpg


    6. Disconnect the phone cable from the computer
    7. Problem to start your Lumia? Hold Power + volume down for around 10 sec. Then press power button
    ​
    STEP 2 – Install Qualcomm
    Check list:
    • Install Chimeratool, and register your mail (You will get a trial version for 2 days)
    • Make sure you have an Internet connection
    ​
    Follow these steps:
    1. Turn off your phone, then connect via USB, while pressing Volume Up
    2. If you have Nokia DLOAD press Flash Qualcomm
    13353135725_892a23f11b.jpg

    3. Wait to it is finished
    4. Disconnect the phone cable from the computer
    5. Problem to start your Lumia? Hold Power + volume down for around 10 sec. Then press power button
    ​
    STEP 3 – Install Qualcomm drivers for pc and Lumia
    Check list:
    • Downloaded my folder (NokiaLumia800)
    • Internet Connection
    ​
    Prepare for flashing rom:
    For Windows 8:
    1. Chose a. or b.
    a. Open CMD with admin and write "shutdown -o -r -t 0"
    b. Hold ⇧ Shift + click Restart (Windows 8)​
    2. Click on Troubleshoot, Advanced options, Start-up Settings, Restart
    3. Click F7 for Disable driver signature enforcement
    For Windows 7:
    1. Restart your computer
    2. Before the Windows boot-screen appears hit 'F8'. This is best performed by pressing F8 repeatedly once the reboot starts
    3. Select "Disable Signed Driver Verifiction" from the list of boot options, it will be near the bottom
    Follow these steps after following Windows 7/8:
    4. Enter OSBL MODE:
    a. Turn off Lumia 800
    b. Hold Power + Volume UP wait to it vibrate​
    5. Connect your Lumia to pc
    6. Open System and go to Device Manager
    7. Device Manager, right click on the CMDA and click Update Driver Software
    13353135925_6faf02efd9_z.jpg

    8. Click Browse my Computer for driver software
    9. Click on Browse and find the Driver-Qualcomm folder
    a. If you have 64 bit Windows install amd64
    b. Else install x86​
    10. Click next and it will install. You will probably get a message like this:
    13353291853_57ee2f544b_n.jpg

    11. Click Install driver software
    13353136305_28ed355cba.jpg

    12. And it will look like this:
    13353136365_cc7933d9fd_z.jpg

    ​
    Install Windows USB drivers:
    1. Open the Driver-WindowsUsb, extract and install.
    ​
    Step 4 – Flashing Custom Rom
    Check list:
    • A Rom that you want to install (for example Rainbow Mod)
    o http://forum.xda-developers.com/showthread.php?t=1665651
    o If you want a Stock Rom check NaviFirm+​
    • Extract NSS PRO from my folder (NokiaLumia800)
    • Remove the SIM card
    • Ensure 100% battery power​
    ​
    Follow these steps:
    1. Run NSS PRO as administrator
    2. Go to Flashing, then WP7 Tools
    3. Connect your mobile to the pc
    4. On the bottom left, choose Nokia USB Connectivity
    5. Click on Detect, and Normal Mode automatically appears
    6. Check of the WP7 Qualcomm on the checkbox below:
    13353292473_4078e3db39_z.jpg

    7. Click on OS File, and find your downloaded Rom (.nb), and open
    8. Take your Lumia out of the PC, and turn it off
    9. Now hold Volume Up and plug it into the USB
    a. Wait to it vibrate
    b. Remember, always hit cancel on format disk!​
    10. Change the Normal Mode to OSBL Mode
    11. Click Write OS and wait to it is finished:
    13353292663_7a3c12578d_z.jpg

    12. Plug your Lumia out of the pc.
    13. Problem to start your Lumia? Hold Power + volume down for around 10 sec. Then press power button
    ​
    ​
    Need code for Windows Live?
    1. Check this link: https://gethelp.live.com/Pages/MSO.aspx?Locale=en-us&Product=wp7&Topic=Marketplace&ForumID=226241
    2. Chatting
    3. You should save your number if a later reset is necessary
    ​
    Hotmail error code (85010017)?
    1. Settings/E-mail/Windows Live
    2. Change server name to bay-m.hotmail.com
    ​
    First time you connect your Lumia to Zune after installing ROM:
    1. The first message you get is a headline where it´s written "START"
    2. Click Next
    3. Next headline is "Name your Phone", write a name on your phone
    4. Click Next, and it will say "Checking for update" (Don´t worry, it will not install the original 7.8 software for Lumia 800)
    5. Just wait, and suddenly you will have your phone ready for syncing
    You should also do the following:
    6. Make a new folder for syncing images from Nokia:
    a) The Nokia starts with the beginning numbers in the picture name, and the new picture names will look like these WP_000001 (2), if you not make a new folder to sync with
    b) Open Zune, and go to Settings > Pictures and Videos > Manage​
    7. Then it is just to sync your music and videos
    ​
    How to backup SMS before installing a new Custom ROM?

    Enjoy! :D
    View
    2
    T
    tuxdude143
    It WORKS!!

    Tested and confermed working! I'm now rocking rainbow mod 2.2 on my lumia 800!

    Also amin_deadly It showed that nand thing for me as well but it didn't impact the installation. You just need to select stuff from the drop down menus manually instead.
    View
    2
    M
    mike-2x
    Happy new year everybody!
    After years and years of searching, I managed to find the digitally signed .cert file for flashing the Qualcomm bootloader to all DLOAD RM-801 Lumia 800s (doesn't work with the RM-819 Lumias, unfortunately). I packed it up as a .esco file, together with the Qualcomm bootloader, and it works! To unlock your phone, just do the following:

    1. Get all the drivers and NSS Pro (see first post)
    2. Open NSS as administrator (otherwise you can't flash a custom OS)
    3. Extract and copy the attached .esco file to /loaders/special/wp7 that is created after opening NSS for the first time
    4. Connect your phone and make sure it's detected
    5. Click on Flashing -> WP7 Tools -> Install
    6. Do NOT format your phone's memory if a window pops up, it would destroy its system and the phone would never turn on again. Just click on "Cancel" or close the window
    7. Enjoy!

    In case of driver problems, try installing Zune and Nokia Care Suite:
    https://archive.org/details/zune-package_202207
    http://www.mediafire.com/?d53a76x4b59p75l

    To flash RainbowMod and fully unlock your phone so you can install apps (warning: it will erase all user data on your Lumia), download it, extract the .nb file, and flash it using NSS (see first post).
    https://mega.co.nz/#F!s9YX2KTT!VtsWY3NbGaN0-xqeQwQgdA

    To deploy .xap files, install the Windows Phone SDK and use its XAP deployer ("Application Deployment"). You can extract the .iso (using WinRAR or something) and just launch the installer by opening WCU/WindowsPhone/WPSDK_[language].exe. Zune (download link above) must be installed, connected to the phone, and running during application deployment; otherwise, you will get error 0x89731811 (or similar).
    https://archive.org/details/WindowsPhoneSDK71_iso

    Now getting apps is a nightmare to say the least. Even if you find a .xap that should be compatible with WP7, if it was extracted from a WP8 device, it won't work. You can install it, but when you launch it, it says something along the lines of "(app name) license is invalid. Please purchase the app." This has nothing to do with licencing (it's just MS trying to scare you), and everything to do with how WP8 works: When you download a WP7 app, it gets (irreversibly) converted into a native WP8 app before installation, making it work on WP8 but not on WP7 anymore. This "conversion" generates a "MDILFileList.xml" file inside the .xap file, so if you see this inside a .xap (opening it with WinRAR for instance), forget it, it won't ever work on a WP7 device. Deleting the file will of course do nothing, since it's a symptom, not the cause :)

    There is a site (in Russian) which archived tons of apps for WP7, but most of their links are broken, sadly:
    https://wp-seven.ru/tag/wp7-apps
    (especially the Nokia Bluetooth share thing is very useful)

    You may wanna paste the URL from above into this translator tool:
    http://itools.com/tool/google-translate-web-page-translator

    That's the best I could find. Sadly, WP7 app preservation is in a terrible state, and if it wasn't for a few fine folks, we would have literally nothing.

    Either way, good luck and have fun!
    View
    1
    D
    Dev.YoungBoy
    Disable Driver Signature Enforcement - Windows 7

    pedrosati said:
    Sorry for the stupid question but i dont know how to get into the "toubleshoot" on the step 3 , can u tell me how to get there in a easier way on the windows 7? :)
    Click to expand...
    Click to collapse

    Okay, here you go!:

    1. Restart your computer
    2. Before the Windows boot-screen appears hit 'F8'. This is best performed by pressing F8 repeatedly once the reboot starts
    3. Select 'Disable Signed Driver Verifiction' from the list of boot options, it will be near the bottom
    4. Once Windows finishes booting, start from step 4 in the tutorial

    Have a nice day! :D
    View
    1
    W
    WunderWungiel
    Hello
    Your achievement is really amazing! Congratulations!
    I backed up most of files needed, linked, mentioned related to Lumia 800 to Internet Archive. They're so valuable.
    I hope they will stay safe.
    View

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