How to Update Nokia Lumia 620 to Windows 10

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• #1

Finally is here! I managed to make a ROM from my Lumia 620 with the latest Windows 10 Mobile build. Here we go!

Windows 10 Mobile Build 10586.36 for Lumia 620 ROM ​

This Custom ROM is a build and then capture from Lumia 620 with Windows 10 Mobile Build 10586.36 using Windows Phone Internals developed by Heathcliff74. Only works with this Lumia, so don't test in other models, you can hardbrick your phone.

NOTES

This ROM is given "AS IS" and was scanned with MalwareBytes, Kaspersky and NOD32 to check if any malware was in zip file. If you download this file without password and/or CRC32/SHA-1 doesn't match with purposed behind, be careful, ROM could be altered and it would be risky for your phone. In that case, It doesn't come from me!

FILE DETAILS

• Name: en_lumia620_Win10Mobile_Build10586.36_AppsUpdated_1-4-16.zip
• Size: 1.452.675 KB (1.68 GB)
• CRC32: 61FA13A0
• SHA1: 8EF66EB5C3B925F7DBF51CEB6C707E36730DC6FF
• Password: windowsphoneapps.es
• Content: Data.bin file, MainOS.bin file and readme.txt.
• Notes: Uncompress with 7Zip is recommended.

ROM DETAILS

• ROM Base: 8.10.14219.314 / 3058.50000.1425.10479 / RM-846_eu_france_314.
• Languages: English.
• System Apps: Updated until 01/04/2016.
• Microsoft Apps: Updated until 01/04/2016.
• Some third party apps were uninstalled.
• This ROM is very close to a stock one. It was free space cleaned up for best practice. It wasn't enabled Root access, so you can do that if you want.

BEFORE INSTALL THIS ROM...

1. Do a backup of your personal files. Installing this ROM will delete all information in your phone.
   
2. You must perform a bootloader unlock to your phone. IT'S NEEDED to flash device with this ROM. For more info, see "Getting Started" section from WPInternals, go to http://wpinternal.net or the official thread.

HOW TO INSTALL?

1. Open "WPInternals".
2. Select "Flash" option.
3. In "Flash ROM" section. click on "Select the source-file to flash to the phone" and select zip file.
4. Press "Flash custom ROM" button.
5. Wait until finish and press "OK" button.
6. Wait until phone starts in Normal Mode.
7. Go to Setting app > Accounts > Your email and accounts and set up your MSA.
8. Done!

CREDITS

- If you want to alter partitions files included in ZIP file, please specify that your work is based from mine and come from this thread.

- If you want support my work, buy a beer to me and another one to Heathcliff74. Thanks to his work I wouldn't be able to do that.

My Paypal: http://forum.xda-developers.com/donatetome.php?u=6003114
Heathcliff74: http://forum.xda-developers.com/donatetome.php?u=3254428

• #2

Hi!

Small note: If you use the "Flash ROM" function of Windows Phone Internals, it allows you to select a Zip-file. If the Zip-file contains partition images (like your zip-file), it will extract the partitions on-the-fly and flash them straight to the phone. So you don't need to extract the partitions first. Windows Phone Internals will do that for you. It will decompress in-memory, so you don't need a lot of temporary space to extract the partitions.

• #3

Thanks for clarification, Cliff. Regards.

• #4

@MrCego,

Can i know how fast the rom is in Lumia 620? Are there any bad lags while using apps and such ?

• #5

It's the same Build 10586.36 recieved from Windows Insider. About build performance, it's ok, some bugs and little lags, but it's usable as well.

• #6

can you guys add project astoria to this build? with the cab files?

• #7

can you guys add project astoria to this build? with the cab files?

Project Astoria is dead. I don't think it can be added.

• #8

Project Astoria is dead. I don't think it can be added.

i agree but i was just thinking of a workaround, since it used to work on an older build which was on slow ring.
Maybe use that as base OS and fiddle with the feature tweaks.
Im just saying this as theory like we used to do on symbian.

• #9

i agree but i was just thinking of a workaround, since it used to work on an older build which was on slow ring.
Maybe use that as base OS and fiddle with the feature tweaks.
Im just saying this as theory like we used to do on symbian.

If anyone still has the build on their phone, I'm sure the developers can make use of it. Maybe even use the registry to enable Astoria on newer builds since it doesn't work on them due to missing registry settings.

• #10

I am running Windows 10 mobile 10586.38 on my 525. Can u tell me how to make a flashable zip file like yours for my phone

• #11

If anyone still has the build on their phone, I'm sure the developers can make use of it. Maybe even use the registry to enable Astoria on newer builds since it doesn't work on them due to missing registry settings.

same thought ^
does slow ring still give that old build? or anyone have an image of it? xd

• #12

Maybe this ROM is the only one available in the world from build .36.

• #13

WPInternals fails to flash this ROM in "flash partitions" mode: "The size of partitions 'MainOS' and 'Data' together are too big", it also fails to flash ROM directly from ZIP archive.
I am flashing Nokia Lumia 620 (RM-846) with WPInternals 1.2 under Windows 8.1 x64
THX for any suggestions

• #14

Sorry for late response. Are you tried flashing a stock ROM first?

• #15

same problems here too

Sorry for late response. Are you tried flashing a stock ROM first?

i m having the same problems , cant flash the rom direct via the zip file or via unzipping it and flashing separately .

i am on a stock rom (had to flash an ffu image since the phone got stuck in a boot loop during bootloader unlock)

not in a hurry tho , thnx

• #16

Try flash France CV stock ROM, boot normally and then flash Custom one.

Sent from Space

• #17

Try flash France CV stock ROM, boot normally and then flash Custom one.

Sent from Space

okay ill download the france cv ffu .

i figured one thing out tho , the data and mainOS bin files in the zip you provided are encrypted thats why it says flash failed , i unzipped them and rezipped them without a password and now it says " size of partitions mainos and data together are too big "

• #18

No. I tested it many time and with another L620. Do stock flash and we will back to talk later

Sent from Space

• #19

No. I tested it many time and with another L620. Do stock flash and we will back to talk later

Sent from Space

nope still says flash failed .
i flashed the france cv ffu and then unlocked the bootloader and tried flashing it with both the methods . none worked

now i am doubting if its actually worth going to win 10 XD

• #20

I'm considering to try another one with Redstone.

Sent from Space

Similar threads

How to Update Nokia Lumia 620 to Windows 10

Source: https://forum.xda-developers.com/t/rom-windows-10-mobile-build-10586-36-for-lumia-620.3286403/

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