Also: If you are powering any node using solar power, you’ll probably want to set router mode:
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They arrived today! Hurray!!
Which firmware should I use for them?
Is firmware-tlora-v1-EU865-1.1.7.bin correct?
Yes, you are right, yours is v1, v2 has a SD slot and a battery switch (no button).
But you can also use the latest alpha release 1.1.8 instead of alpha 1.1.7
Have fun tinkering 
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Thanks a lot!! 
Today is CHRISTMAS!!
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I feel with you, Merry Christmas! 
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Very useful mod! I’ve replicated it on two identical boards, but it only works on one of them…
Does it work if you just momentarily jump a wire between the pin and ground? If so, check your connections and the switch. Also make sure you’re on the correct pins. I can’t think of much else that could be wrong.
No, it just never works. It must be a quality control issue then…
Hello all!
Would you guys be able to direct me to what firmware I could use with this board:
The listing says: LoRa32 V2.1 1.6
And the silkscreen says: T3_V1.6
(I got several for use with disaster.radio, but this project seems much more active and from what I can tell they are viable for use with it?)
Thank you!
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With this board you can use V2 1.6 firmware.
I have the same board and it works good with 1.1.32 version of firmware.
You will have to connect a user button between GPIO 12 and ground to cycle through screens, just like someone stated in this post.
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I noticed that the documentation referring to Lora V2.1-1.6 on LILYGO® TTGO Lora devices | Meshtastic mentions “Early versions of some of these boards contained the wrong component in the LiPo battery charging circuit allowing the battery to be overcharged.”
Is there a way to add “Owners need to check if their board is marked 06140141 T3_V1.6 dated 20180506 or 20180606.” or put a reference to this thread?