need help for zbt wg1602

[giorez]

sorry to posting here, there is any place to get support in building u-boot to replace pandorabox on my router zbt wg1602?

here are the specs:

ZBT-WG1602 V04 (32M)
Supported Since Commit: https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=53f2e438cb58a8f7b8d0d01f941aca9682be1e82
Target: ramips
Subtarget: mt7621
Package architecture: mipsel_24kc
Bootloader: pandorabox
CPU: MediaTek MT7621A
CPU Cores: 2
CPU MHz: 880
Flash MB: 32, microSDXC
RAM MB: 512
Ethernet 1Gbit ports: 5
Switch: MediaTek MT7621A
Modem: quectel EP06-E
WLAN Hardware: ,
WLAN 2.4GHz: MediaTek MT7603E; b/g/n
WLAN 5.0GHz: MediaTek MT7662E; a/n/ac
WLAN Comments: MIMO 2x2:2 for each band, 2 antennas shared by Wifi 4 intended for WWAN
WLAN driver: mt76
Detachable Antennas: 6
miniPCI ports: 2x slots with USB&SIM + 1x slot with regular PCIe bus
USB ports: 1x 3.0
Serial: Yes
Serial connection parameters: 115200 / 8N1
Serial connection voltage: 3.3
Power Supply: 12V/2.5A barrel