Dear K

I found I do have pip3. I installed pyasn1 using pip3.

I tried again, and got an error message. This time I needed rsa. Which I installed using pip3.

I typed python3 update-verifier.py etc.....

In reply it showed

verified successfully

Thankyou very much for taking the time to help me.

Yours sincerely ROMMMELLL

Thanks M

Dear E

Thanks for your reply.

Could you point me to someone who has experience with locks on old phones ?

Yours sincerely ROMMMELLL

Thanks E

Dear K

I opened the Terminal and typed python3 and hit return and saw something like what you have written above, so it seems I have successfully installed Python3, thankyou.

I went to https://github.com/lineageos4microg/update_verifier and clicked the green code button. I clicked on Download Zip. update_verifier-master.zip appeared in my Downloads. I double clicked on this and a blue folder titled update_verifier-master appeared.

I think the next step is to Open the Terminal again and cd into that folder.

BUT I am stuck at this point because I don't know what "cd into that folder" means, or how to do it.

Could you elucidate ?

Yours sincerely ROMMMELLL

Thanks M

Thanks K

Dear S

Thanks for your reply.

Thanks for the tip re the pawn shop.

Did you ever go ahead and succeed in unlocking a dumb phone ?

Yours sincerely

ROMMMELLL

Dear K

Thanks for your reply.

Do you remember the model ?

How exactly did you unlock it please ?

Yours sincerely

ROMMMELLL

Dear C

Thanks for your reply.

Do you remember the model ?

How exactly did you unlock it please ?

Yours sincerely

ROMMMELLL

Dear H

Thanks for your reply. That is very interesting.

How did your phone become locked to vodafone germany ?

Could you talk me through the complete process, each step, that resulted in success please ?

Yours sincerely ROMMMELLL

Dear A

Thanks for your reply.

Did you ever go ahead and unlock a dumb phone when you were working in the store ?

Yours sincerely

ROMMMELLL

Dear A

Thanks for your reply. That is very helpful.

I am new to the terminology.

Does 'original provider' refer to the phone maker, or the phone seller, or the provider of the first SIM card, or someone else ?

If the phone was NOT locked by the original provider, how else could it be locked ?

And how would you decide what sort of lock you were dealing with ?

Yours sincerely

ROMMMELLL

Thanks S.

I understand.

In my case, I got the phone new in one country, where I used the 1st SIM card I put into it. I wasn't aware of any requirement to use any particular SIM card, or to use it for any particular time.

Some time later I was in another country. I wanted to put my 2nd SIM card in, but the phone wouldn't accept it.

I took it to a phone shop and had it unlocked.

I have been using this 2nd SIM card for years. This SIM card is in no way connected to the phone seller or phone maker, and it is from a different country.

BUT now I find that this 2nd SIM card is the ONLY SIM card the phone will accept.

How do you interpret this data ?

How would this lock be activated on an unlocked phone ?

Yours sincerely ROMMMELLL

Dear K

I changed the directory as you instructed.

Afterwards, in the CLI, I typed pwd and hit enter.

In reply it showed the path ending in update_verifier-master

I typed python3 update_verifier.py lineageos4microg_pubkey /Users/my user name/Downloads/lineage-18.1-20230614-microG-jfltexx.zip and hit enter

In reply it showed

Traceback (most recent call last): File "/Users/my user name/Downloads/update_verifier-master/update_verifier.py", line 6, in from pyasn1.codec.der.decoder import decode as der_decoder ModuleNotFoundError: No module named 'pyasn1'

Did I do something wrong ?

Dear K

I tried to flash the recovery, but it wouldn't read the file.

Then I remembered what you taught me about changing the directory.

I thought, " Could it hurt to cd into Downloads to tell it where the file is ? "

I ran the CLI command and it flashed the recovery no problem.

The same with the adb sideload.

And now I have LOS4MG on my S4.

Thanks for taking the time to help me.

Yours sincerely ROMMMELLL

Dear K

Thankyou for the recommendation of Fennec.

I am finding this very useful.

Yours sincerely ROMMMELLL

Thanks W

Thanks I.

I haven't done anything to the stock set up yet. I am just about to start.

Thanks for the tips.

Thanks H.

I appreciate that it has been a long time.

If I understand correctly, your phone was locked to Vodafone Germany from the very start. Then, some time later you registered your phone on a website, and this action alone freed your phone.

One question : whose website did you register your phone on ?

eg. Phone maker ? Phone seller ? Provider of the SIM card ? other ?

Yours sincerely ROMMMELLL