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Cannot update Firmware to new v2 board.

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Hi. I just got a v2 for my E3, and installation went fine, it starts up with the installed Marlin 1.0.1, but that's where i'm stuck. My only means of putting a .bin on an SD is using my phone, then placing that SD card in the v2.

After inserted then printer turned on, it just starts as usual with the already loaded software. At this point, if i pop the SD in and out, it registers inserted or removed, but i get "No TF Card."

If quicker/easier, updating the Firmware via USB is fine, too, i'm just not technical, eager to get back to printing. :) I've tried three different SD cards, no luck.

Thank You for any help.

Search youtube for "load ender bootloader" The "bootloader" is what allows the firmware to be updated, Early ender boards did not come with this installed

The v2 is supposed to have a bootloader already installed to make the Firmware update as easy as inserting the microSD card and then turning on the printer. ?

Is this board upgradable? The older ones required you to program using a special adapter to a header on the board — they were not upgraded via the SD card or standard USB.

The v2 is supposed to have a bootloader already installed to make the Firmware update as easy as inserting the microSD card and then turning on the printer. ?

Yes, I have a V2 and that's how you do it. Nothing else on the card, just your firmware (.bin file). Insert card while machine is off and power on. I've done this with the V2 with both the 4.2.2 board and the 4.2.7 board.

(if it's creality's stock firmware, verify your mainboard version number for compatibility)
(if it's not a pre-configured firmware, you will need to edit it before flashing)