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How is Verizon capable of blocking the *#0*# diagnostics menu

Just curious on how Verizon can embed software into phones to block *#0*# and *#7343*# diagnostics menu and why do so.

Does flashing with any firmware bypass this with odin?

It just makes testing so much easier when this is available.

Beantwoord! View the answer Dit probleem heb ik ook

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@andre_faughn . Which Samsung phone do you have?

Yes, Verizon has final say what goes into the firmware on Samsung phones that they sell.

Tmobile and AT&T do the same.

It also could be that Samsung has retired the codes you mentioned and changed the access code for the diagnostic menu, or Verizon disabled them as you suggested. A very good reason why it would be disabled or changed is because Galaxy 2 ,3, 4, and early 5, had a specific order you go through the menu and it would unlock the phone permanently. Obviously, the telecoms aren't happy about this, especially when these phones are sold at a discounted price.

Alternate ROMs may have these codes still.

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That makes sense, I was just curious to why and how they do it, being the only carrier that limits that capability. I do repairs for a company with 14 stores who sell used phones so its pretty much every model I work with. Thank you for the information I really appreciate it.


@andre_faughn no problem. I have a Galaxy S8+ that was originally Verizon FW, and I followed a reddit thread on how to flash to stock unlocked FW. This brought back the diagnostic command.


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I know this is an old thread, but I haven’t had much luck on this. I have an UNLOCKED S10+ on Verizon. I bought it directly from Samsung, and it is clearly unlocked. I am unable to access the diagnostic codes on the Verizon network. I didn’t think of trying it before I put their SIM in. I have tried it after clearing the partition cache , SIM in, SIM out, even in safe mode and every combination thereof. How does Verizon block it that way? Is it possible to bypass it? I’ve talked to Verizon Tier 2 CS and they were unable to help. My local store wasn’t much help either. Any ideas?

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*#0*# is not working

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Andre Faughn zal eeuwig dankbaar zijn.

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