[SUCCESS] Interop-Unlocking LUMIA - with JTAG
Well, as we really need Interop Unlock for our Lumia phones, i decided to check this out myself.
As i already have ATF Box
for a long time, i decided to buy JTAG activation and dolphin clip
+ lumia jigs
, that i do not have to solder my phone.
Also i have ordered a Lumia 520 testing phone on ebay.
So, as the ATF Team made an awesome JTAG software update
, i'm trying to interop unlock that Lumia 520 the hardware way, as just software seems to be too tough...
Well, what i did so far:
1. Freshly flashed Lumia 520 RM-914 with latest stock rom
2. Did the setup/beginning after turning it on for 1st time
3. developer unlocked it with SDK on PC
4. Made Full Dump with JTAG from dev-unlocked phone
5. Mounted MainOS partition of dump with program "OSFMount" (-->appears as Local harddisk example drive E: )
6.Loaded the SOFTWARE hive with regedit on PC from "E:\Windows\System32\config"
7. Edited the following values:
PortalUrlInt = http://127.0.0.1
PortalUrlProd = http://127.0.0.1
MaxUnsignedApp = 10003
8. unloaded SOFTWARE hive
9. unmounted dump-image
10. wrote image back via jtag
I thought it might be a good Idea to dev-unlock the phone before messing with the registry, to make sure "DeveloperUnlockState = 1" gets written the "legal" way, as the key is not available in registry before.
Maybe it's better to just modify an existing key, than adding a new one...
Well, long story short: The result is not totally satisfying.
After writing the modified image back to the EMMC, the phone is booting up, but i can NOT deploy homebrew apps that require interop unlock, like @GoodDayToDie
s "EnableAllSideloading.xap" for example.
But i can deploy "nomal" apps like @cpuguy
s "Toastlauncher" and @GoodDayToDie
The weird thing: If i check the reg-values via WebServer on the Phone, i can see my edited values.
So the changes ARE written to the phone. The phone just doesn't use them...
So, the good thing: phone is booting with modified rom
But, the bad thing: Changes are not working.
i could successfully sideload "EnableAllSideloading.xap"
After executing enableallsideloading i could sideload latest WPHTweaks build.
Now i have 3rd tile row enabled!
Also member @myst02 is working on interop-unlocking the lumia phones. So we decided to make this a together-project.
See his achievements here: http://forum.xda-developers.com/show...713098&page=10