I noticed that HTC always updates their Taiwan model of their phones first. I decided to unlock my bootloader and S-off to change my CID to the Taiwan version. Sadly it keeps saying invalid CID. The CID is the only thing that needs to be changed, since the MID is the same anyways (both are 2PZC300000). After doing some research the CID seems to be: HTC_621 and STOCK EMEA: HTC_034. How come changing the CID gives me an error? Has anyone else actually even tried this? Or was this never possible to begin with? Is this maybe blocked by HTC? I rememeber Changing CID and MID on my One M9 really easily. I was able to install the US unlocked RUU. The reason I'm specifically choosing Taiwan RUU is because of the dual sim functionality. I'm afraid the US unlocked won't even work since that one is single sim and I don't really want to risk it.
EDIT: Typo in the title. It should be: DUGL Taiwan. The: H was a mistake.
EDIT: I was able to change the CID. I made a dumb mistake by not reading that you need to use two underscors. Like this: HTC__621. Instead of HTC_621. All I need to do now is flash Taiwan RUU and see what happens.
EDIT: succesfully flashed and updated to the latest version on Taiwan firmware
EDIT: Typo in the title. It should be: DUGL Taiwan. The: H was a mistake.
EDIT: I was able to change the CID. I made a dumb mistake by not reading that you need to use two underscors. Like this: HTC__621. Instead of HTC_621. All I need to do now is flash Taiwan RUU and see what happens.
EDIT: succesfully flashed and updated to the latest version on Taiwan firmware
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