647 BG2EFX Yes, it's possible to flash the firmware, but I can't flash the version I want. The original version has a slightly lower capacity.
647 This isn't a scam, this isn't a scam. My call sign hasn't been assigned yet; I took the exam on July 16th. Also, the original charger is included, and the device hasn't been listed on the stock exchange yet.
647 BG2EFX I enjoy tinkering and modifying things. The original version doesn't offer much room for customization, so I created my own modified version.
Earth2023-Future 647 Buy a chip board and modify it yourself, or ask someone else to do it (it's relatively simple).
BG7MGW This used device isn't worth much, and keeping the original firmware for later use is also a good option. Also, buying another V3 version won't cost much; a K1 regular version can be purchased for around 80 yuan.
BI2REM Okay, let's address this. If you're talking about V1, it can handle multiple systems and even CW transmission. Expanding the system is a straightforward solution. The limitation lies in V3.
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