I picked up the Lumia 620 on the O2 deal to play around with and requested an unlock code which O2 have sent me so can use other SIM's now and tested it with an Orange SIM.
It didn't cost me anything to get it unlocked as I am an iPhone pay monthly customer already.
The problem now is the branding. 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 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?
For now I flashed it back to the O2 firmware using the Nokia Care Suite as there are not any updates available to check.
Cheers!
Are you able to advise how you got O2 to unlock your PAYG Lumia 620 as I asked over chat last night and they wouldn't have any of it...even though I told the I (well my wife) has an O2 iPhone contract...!?!? Their policy is based on the phone being owned for 12-months or more before being unlocked, not the PAYG SIM or Pay Monthly contract...
I threatened them with leaving and referenced the fact Vodafone would do it at any time on PAGY for £20...!!!
They've told me to ring support on 4445 directly to discuss...
Any thoughts?
Judging by the comments above, the 620 cannot yet be unlocked via firmware?