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H20 Box with RK3228A bricked

H20 Box with RK3228A bricked

I have purchased the following board, named H20 from AliExpress: https://it.aliexpress.com/item/1005005623753864.html I could boot the multitool for RK322x by holding the reset button, then selecting boot menu from Android's bootloader. After installing an armbian release, the board does no longer boot, and a red LED turns on immediately after giving power. I would like to try other Armbian images, but, I am no longer able to boot the multitool as I no longer have access to the An
Godziller, I have similar board and had bricked it. I just shorted some pins on resistor pack (51R x4, they are on D0..D7 lines) and it falls to mask ROM.   Main trouble in similar boards is 1.5GB RAM eMCP pack which requires special bootloader (DDR init 1.10 doesn't support 1.5G, it detects 2G and hangs).   I extracted and re-assembled loader from firmware, it has DDR init code v1.11 and usbplug v2.53 (v2.56 halts system boot).   DDR Version V1.11 20200910_dbg In ID: