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Unbricking a esp8266 wifi serial module.

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dr pepper

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So I have a esp8266, I wanted to update its AT software, so I tried to flash it using espressive's flasher, half way through it chucked an error.
If I try to flash it with esp's software now sometimes it will program to the end and others it hangs.
When it does program all the code when I try to use the module either nothing happens or I get garbage from the serial.
I tried another flasher program, that didnt work either.
I have been using Gp0 as program and run mode.

Has anyone managed to unbrick one of these, I'm thinking of chucking it and starting again.
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