Help needed downgrading from 7.8 - Nokia Lumia 800

Im trying to downgrade my lumia 800 as it is slowly developing glitches and locking up on me randomly.
I tried NaviFirm but it is no longer available.
Im struggling to find a firmware to downgrade back to 7.5 to remove the volume limit and to stop the random lockups.
Can anyone help please?

E4rl3 said:
Im trying to downgrade my lumia 800 as it is slowly developing glitches and locking up on me randomly.
I tried NaviFirm but it is no longer available.
Im struggling to find a firmware to downgrade back to 7.5 to remove the volume limit and to stop the random lockups.
Can anyone help please?
Click to expand...
Click to collapse
Hi there, do you have Nokia Care Suite installed already?
So, I can give you two original, (zipped) unbranded firmware's (productcode: 059L9S2) here:
RM-801 Cyan (v7720.11414)
RM-801 Cyan (v8773.12220)

Yeah i have Nokia Care Suite installed

product code ? i have RM801_059P2R9_1750.0805.8773.12220_013 vodafone ro http://rapidshare.com/files/170317250/os-new.nb.img
-first make backup with this tool http://forum.xda-developers.com/showthread.php?t=1379571
-then flash rom with "Nokia Lumia 710/800 downloader" , search in this post http://forum.xda-developers.com/showthread.php?t=1665821

Product Code 059N7K7
Its also on DLOAD Boot rom

RM801_059N7K7_1750.0805.8773.12220_006 os new nb img
LE
link changed

I cant download it

Related

Restore old firmware 7720 possible?

Hi guys i need to restore a firmware 1600.2475.7720.11414 with product code 059m3c1....but i haven't a backup of zune anyone can help me?i've tried with Nokia care suite but i don't have a qualcomm cdma driver.
Tanx
Have you looked for 'downgrade nokia lumia 800' on google? On the cabsender topic page there are a collection of cabs available. Don't know if it's possible to write them back one way or another. If you find the solution keep us posted. I'm trying to get rid of the singaporian update to get my own dutch official firmware working, and I to did not make a backup of the phone

[Q] Restore Lumia 710

Maybe it is a stupid question and if so, I apologize for this.
I bought a Lumia 710 and I want to interop-unlock it. Just checked for every thread in the forum but I don't have found anything that fits to me.
If I follow one of the guide in the forum, I flash my phone and everything goes ok.
When I want to return to stock ROM (example for warranty), what are the steps to follow?
very thanks to everyone!
I would imagine you'd need to download the stock ROM from NaviFirm and flash it with either Nokia Care Suite for DLOAD bootloader or for QC bootloader there is another program you need to use, but I can't find the name of it.
All info is here, just read everything
And this is what I thinked about, but I want a confirm.
The version I have of NCS Product Support Tool is 2012.12.5.3 in normal mode found my phone, but in QC bootloader don't find it.
If i wish to restore original rom, there is a guide for it?
yes, you use NSS to restore your bootloader. check it out in development thread and say THANKS to the Developer because he has mede it easy to use.
Cheers
Use the NSS Suite to get back the Nokia DLOAD then just update normally to get back to the original state for your warranty claims
Sent from my Lumia 710 using Board Express
Ok, thanks to all, for now I don't have necessity to claim for warranty, but you know, Fortune is blind but bad luck sees us well!!!
installing rom on pre installed rom
can i install rainbow mod 2.1 on lumia 710...
i have rataplan v1.0 installed...
should i flash it or i have to do someting else..??

Flash Nokia Lumia 710 Back To Stock?

Hey guys,
I took the plunge and install Qualcomm bootloader and installed RainbowMod ROM on my nokia lumia 710. I want to flash tango or to another custom rom. However my phone isnt being detected in NSS Pro although it comes up on Zune. Please help!
Hi,
You also need NCS installed for the drivers (Nokia specific).
BR
Im confused when I initially flashed the lumia about a month ago I just installed nokia care suite, x64 drivers, nss and zune
I have exactly the same problem. My phone isn't detected on NCS. My phone is already bootloader-unlocked, loaded with RainbowMod, and I also installed every driver that I could imagine.
Same here, I am on Lumiatrix 4.1 now, when i try NCS, it keeps telling me to go into bootloader mode and doesn't detect it. All drivers there AFAIK.
http://forum.xda-developers.com/showthread.php?t=1702815&highlight=dload
USE this to revert to DLOAD
surya467 said:
http://forum.xda-developers.com/showthread.php?t=1702815&highlight=dload
USE this to revert to DLOAD
Click to expand...
Click to collapse
Hey thanks bro, had this at the back of my mind but somehow forgot i was on qualcomm osbl.
Sorry my thanks limit has been reached.
EDIT: Thanks to you i have flashed the latest 8779 Indian firmware with NCS. Cheers.
Oh my, thank you soooo much.
anishmahadikz said:
Hey thanks bro, had this at the back of my mind but somehow forgot i was on qualcomm osbl.
Sorry my thanks limit has been reached.
EDIT: Thanks to you i have flashed the latest 8779 Indian firmware with NCS. Cheers.
Click to expand...
Click to collapse
anytime mate
see u around

HELP !!!

Hi i use a lumia 710 with the tango firmware.
i heard that the tango refresh 8779 is out..
im not able to get the update over zune.
is there any other way i can do it ?
help needed
thanks
jackiechanme said:
Hi i use a lumia 710 with the tango firmware.
i heard that the tango refresh 8779 is out..
im not able to get the update over zune.
is there any other way i can do it ?
help needed
thanks
Click to expand...
Click to collapse
You need to download NaviFirmEx_v1_6_1_en so you can pick which Lumia 710 firmware you want to install. You also need to download nokia care suit to install the firmware on to your lumia 710. Its very easy to do but it will reset your phone doing it this way.

Lumia 920 Firmware Flash

Hello,
I am new on the site and thank you in advance for all your help. My problem is this:
I bought Lumia 920 in USA in AT&T. It was unlocked phone to work with any SIM card. I have noticed that I do not have 4g speed on my phone and I do have carrier which supports 4g. Now I see in other topics that I have wrong rom. It is for USA. My current Rom is rm-820 and I see that I need rm-821. Ok, thats fine I can flash my phone and it should work. But, every topic, every page that I found on Google doesn't work. To be more precise topics do work but I can't get rm-821 :-/ I saw that Nokia blocked those servers something like that. Can someone give a me a way to put rom but technique that works ? I am from Croatia if this matters for rom.
Thank you very much guys !
you could try this:
https://stebet.net/how-to-install-a-country-variant-firmware-with-the-windows-phone-recovery-tools/
or this:
http://forum.xda-developers.com/showthread.php?t=2515453
ATT Lumia 920 Firmware Flash
Hi,
I might have missed some methods to do this task but in trying to debrand an ATT lumia 920 (RM-820) that's fully updated to WP 8.1, I can't seem to find a successful way to do it. I've done this procedure in the past successfully by flashing the specified Rogers firmware to the phone with Nokia Care Suite then on to an RM-821 firmware but what worked in the past no longer works. Nokia Care Suite now gives me an error message that the FFU file from my flash file and the FFU file on the phone don't match and the flash procedure halts. I've tried several different Rogers firmware files and no luck with any of them. Any ideas how I can accomplish this task?

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