J730f-How to unlock oem and frp - Samsung Galaxy J7 (2017) Questions & Answers

Hello,
I have some questions about the j7 oem and frp lock.
How can i unlock oem without access to android. The phone is frp locked.
I am not a thief or anything.
I already have a phone (One Plus).
I just found the phone in bad shape. Inflated battery, broken screen and water infiltration.
I brought it to a shop of the same brand as the sim card inside.
The seller just got the sim. That the owner was nowhere to be found and that there was nothing he could do with the phone except put it in the trash.
I ordered a screen and a battery.
Clean the contacts and electronic card corroded with alcohol.
The j7 starts but is frp lock. (oem lock too)
I flashed it to Android 9 in the hope of solving the problem ... But no
(Yes ... I did not inquire before ...)
I tried a bootloader downgrade but does not work.
Any ideas ?
Thanks

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ummm... first thought, why did u relock it to exchange ear phones? i exchanged the device itself when it was fully unlocked.
back to topic. u might have to exchange the device.
If you need help msg me
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Hey guys
I purchased a Telus Optimus 7 phone and I'm trying to unlock it. I got the code from a specific website... but when I put in my SIM card (from another provider) the phone prompts that "the sim is locked and you need a PUK". I got the PUK from my service provider but when I enter it... it gives me a SIM ERROR message. I know that the phone is suppose to prompt me to "enter pin" but it doesnt do it. Am I doing something wrong ?
Everyone looking to unlock their LG Optimus 7, heed my warning!
DO NOT ENTER A WRONG UNLOCK CODE MORE THAN 2 TIMES! IT WILL LOCK ITSELF ON THE WRONG 3RD ATTEMPT.
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Btw, same thing happened to me.
whoa... think that in his case is the Personal unlocking code, not the Phone unlocking code... if u put the original SIM card the phone works? if so, or the SIM that ask you the PUK is fried or you just really don't have unlocked the phone
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Thanks!
I have tha same problem, does any one how to make my phone works, or to find a PHONE unlock key(PUK) without contacting AT&T (the original's phone carrier) because I don't use AT&T service, but I want to unlock my phone ... my LG quantum says ''your phone is locked, contact you service provider for an unlock code''

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Tried formatting everything, not working.
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Rigna99
Hey did you fix it?
Hello, I'm sorry I didn't find a real fix for it, I just found that my cable ( sim card to main board cable) wasn't perfectly connected, after pushing it back in place, it started working normally.
I suggest you to do the same if you have the same problems

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