He tested a 3S LiPo. Charged dead-straight to 12.60V. IR readings appeared—precise to 0.1mΩ. His old packs suddenly behaved again. He posted on the forum: “It worked. But the charger now shows ‘Build: private’ at boot.”
LipoSavage_77 never replied. His account was deleted three hours later. imax b6ac v2 firmware update
No official file from SkyRC. Just a .bin hash and a photo of a modified USBasp cable wired to the charger’s internal ISP header. Marco soldered at 1 a.m., hands shaking. He connected the programmer, launched the flasher—and the screen went black. He tested a 3S LiPo
For ten seconds, nothing. Then the backlight flickered. The boot screen reappeared—but wrong. The font was sharper. The calibration menu had a new option: “Cell balance tuning.” His old packs suddenly behaved again
Marco’s iMAX B6AC v2 had been flawless for two years—until it wasn’t. One Tuesday, it started beeping at 4.2V per cell as if 4.19V was an insult. Then the calibration drifted: a 5000mAh pack charged to “4782mAh” and stopped. His drones felt it first—shorter flights, uneven cell voltages after storage.