- 02-13-2013, 05:40 PM #1
Hi guys, this is my first foray into Windows Phone tweaking so if this is a stupid question please go easy on me.
I picked up a Lumia 620 yesterday for the bargain price of £119.99 plus topup. I'm not an O2 user as such, though I do have a contract SIM that I'm going to be getting the phone unlocked with over the coming days. I hate network customisations though, no matter how subtle and I really want to get rid of that O2 splash screen by flashing a 'stock' ROM. I've looked on Navfirm as per the advice of a friend but there is a baffling array of firmwares on there. I can see mine (RM-846 VAR EU EURO1 GB O2 SL (059R663)) but can't see an obvious UK SIM free ROM to flash.
Does such a thing exist? My internet is criminally slow so I don't want to download the wrong one and have to start all over again, and also I obviously don't want to brick my phone irreparably.
As it stands, I have Nokia Care Suite, Navifirm+, all the relevant drivers and a headache.
Can anyone help, or am I wasting my time at the moment?
Many thanks in advance
- 02-16-2013, 09:53 AM #5
I picked up the 620 on the one day O2 deal and have got O2 to unlock the device so tried de branding it with generic firmware.
I downloaded the Nokia Care Suite and flashed the generic firmware which put it to stock but it mentioned something about the product code not being specified however it all worked fine but unsure how it would effect software updates in the future.
The product code is 059R788 which looking at the firmware matches the O2 branded one so will future updates still have to wait for O2 if they are based on product codes? I see the SIM free model and firmware has a product code of 059R4G7.
For now I have flashed it back to the O2 firmware using the Nokia Care Suite as there are not any updates available to check.
02-19-2013, 05:44 PM #8
- 21 Posts
I'm not planning on re-flashing mine because of the problems that can be had with MMS and Internet settings. At least with the O2 firmware I know these are all set-up nicely and can be restored by resetting. The only difference seems to be the first boot screen anyway.
02-21-2013, 06:38 AM #9
- 21 Posts
I can confirm that I bought a 620 on the O2 PAYG (for £120), then unlocked using my wife's pay monthly details (via chat with O2) and now it's de-branded using the '059R4G7 - RM_846_CV_GB_VAR266989_v2_confml_Default' firmware and the phone remained 100% unlocked - I'm now using my work Vodafone SIM.
I believe you have to use a specific version of the 'Nokia Care Suite' for the firmware flash currently - '2012.45.4.5'.
I hope that helps!
- 02-21-2013, 06:48 AM #10
It will be interesting to know if the product codes not matching between the firmware and the device effects future updates OTA.
I did flash mine and then flashed it back to the matching O2 version just in case as there was no new updates available to test.
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