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

[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!

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)

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

2. Click Next, then click Restore

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:

NOT a pop-message:

Right click on Safely Remove:

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)

o https://chimeratool.com/downloads​

• 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

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

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:

11. Click Install driver software

12. And it will look like this:

​

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:

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:

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?

1. Check this link: http://forum.xda-developers.com/showthread.php?t=2691682
​

Enjoy!

 

[amin_deadly]

nand disk drive

when i connect my phone, i dont see nokia connectivy ,,, program show me nand disk drive. and when i tap detect button , nothing change ...

my mail : [email protected]

THANK YOU

 

[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.

 

[amin_deadly]

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.

please open my attachment ,at first Post ,

. when i tap UNLOCK button, it says :

----------------------------------------------------
Looking for phone...Not found!
Can't read IMEI, backup will be skipped.
----------------------------------------------------------------------------
Looking for NAND disk...Not found.
Things to check:
1. Is the phone connected?(Plug to the USB)
2. Is it in the correct mode?(Try to switch to OSBL mode)
3. Have you installed the Qcom loader ?(Use the Install button)


But i didnt tried to use any custom rom to be installed. just went to simlocks , and clicked on Unlock button.!

 

[tuxdude143]

please open my attachment ,at first Post ,

. when i tap UNLOCK button, it says :

----------------------------------------------------
Looking for phone...Not found!
Can't read IMEI, backup will be skipped.
----------------------------------------------------------------------------
Looking for NAND disk...Not found.
Things to check:
1. Is the phone connected?(Plug to the USB)
2. Is it in the correct mode?(Try to switch to OSBL mode)
3. Have you installed the Qcom loader ?(Use the Install button)


But i didnt tried to use any custom rom to be installed. just went to simlocks , and clicked on Unlock button.!

Thats whats wrong, this method only works with a full unlock. Not just a simlock. Still a full unlock is well worth it though! Take it from me!

 

[amin_deadly]

Thats whats wrong, this method only works with a full unlock. Not just a simlock. Still a full unlock is well worth it though! Take it from me!

my problem is that, NSS pro cant found my phone.

I download a rom, and try to install it, but still cant found.

it says : are you sure you have development qcom loader?

what should I do??!

 

[Dev.YoungBoy]

NSS Pro - not recognizing my phone

my problem is that, NSS pro cant found my phone.

I download a rom, and try to install it, but still cant found.

it says : are you sure you have development qcom loader?

what should I do??!

I got the same message when I made this tutorial. Please make sure you have followed the tutorial step by step!

To get Nokia Connectivity make sure you have your Nokia turned on, and not into OSBL MODE!

This helped for me:
- Try to Run NSS Pro as administrator by right clicking on the exe, then click Run as administrator
- Make sure when you power off your Nokia (step 8), disconnect your USB from computer

 

[amin_deadly]

I got the same message when I made this tutorial. Please make sure you have followed the tutorial step by step!

To get Nokia Connectivity make sure you have your Nokia turned on, and not into OSBL MODE!

This helped for me:
- Try to Run NSS Pro as administrator by right clicking on the exe, then click Run as administrator
- Make sure when you power off your Nokia (step 8), disconnect your USB from computer

I didn't run nss as adminestrator.. That's why I couldn't connect to nss..

 

[saywa]

it works !!!!

but
i really need help

i have unlocked and flashed this rom (rainbow mod)

but i have back up with wp7 easy backup
and we know its not compatible

its also not working with zune

how can i apply this damn backup

 

[Dev.YoungBoy]

Syncing after installing ROM

it works !!!!

but
i really need help

i have unlocked and flashed this rom (rainbow mod)

but i have back up with wp7 easy backup
and we know its not compatible

its also not working with zune

how can i apply this damn backup

You can only sync your music, videos back to your phone by using Zune, since the wp7 easy backup isn´t working on this ROM

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 startes 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) Go to Settings > Pictures and Videos > Manage​

7. Then it is just to sync your music and videos ​

I am sorry but you will not be able to get the old messages and game history back on Lumia

 

[saywa]

You can only sync your music, videos back to your phone by using Zune, since the wp7 easy backup isn´t working on this ROM

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 startes 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) Go to Settings > Pictures and Videos > Manage​

7. Then it is just to sync your music and videos ​

I am sorry but you will not be able to get the old messages and game history back on Lumia

well i understand

but lets find a solution then
we have all our back up data

maybe make a new app or something !
or try http://forum.xda-developers.com/showthread.php?t=2010135

 

[Dev.YoungBoy]

WPBackup

well i understand

but lets find a solution then
we have all our back up data

maybe make a new app or something !
or try http://forum.xda-developers.com/showthread.php?t=2010135

Thanks! I will check it out, and maybe do some changes in the tutorial!

 

[mr.hellgate]

when i connect my phone, i dont see nokia connectivy ,,, program show me nand disk drive. and when i tap detect button , nothing change ...

my mail : [email protected]

THANK YOU

Same happend to me and I tried this way which worked just fine:
http://forum.xda-developers.com/showpost.php?p=39508250&postcount=3&nocache=1&z=93784190248698

Greetings

 

[saywa]

Same happend to me and I tried this way which worked just fine:
http://forum.xda-developers.com/showpost.php?p=39508250&postcount=3&nocache=1&z=93784190248698

Greetings

you see nokia connectivity in normal Booted mode
i even just Saw LAUFWERK, none of you all posted but just made it to OSBL mode (like tutorial says) and just clicked on Write OS

it works either way

@Dev.YoungBoy

that program has own archive compression
we would need a converter or something

 

[90nibiru]

Thank You so much

You are my hero

 

[pedrosati]

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?

 

[Dev.YoungBoy]

Disable Driver Signature Enforcement - Windows 7

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?

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!

 

[shadow25]

DLOAD f..k

Unlock bootloader from DLOAD to Qualcomm work perfect!

 

[pedrosati]

Hey thanks a lot!! I am using the rainbowmod now! But can you tell me how to download apps paid for free?

 

[90nibiru]

Can I update this?

Really great job, it works like a charm. But I have a little question for you, guys.
What happens if I update from this ROM? My phone will be automatically locked again?
Sorry for my English and have a nice day.