It is possible to flash AirOS from a working OpenWrt, or in another remote way?
If you do a binwalk on AirOS Firmware, I would believe I can just do some dd, but not sure what exactly I have to use.
DECIMAL HEXADECIMAL DESCRIPTION
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0 0x0 Ubiquiti firmware header, header size: 264 bytes, ~CRC32: 0x7F38307F, version: "WA.ar934x.v8.7.1.42832.200623.1641"
268 0x10C Ubiquiti partition header, header size: 56 bytes, name: "PARTu-boot", base address: 0x9F000000, data size: 231788 bytes
115476 0x1C314 Certificate in DER format (x509 v3), header length: 4, sequence length: 64
143220 0x22F74 U-Boot version string, "U-Boot 1.1.4-s1102 (Mar 5 2019 - 17:13:19)"
143508 0x23094 CRC32 polynomial table, big endian
224688 0x36DB0 CRC32 polynomial table, big endian
232120 0x38AB8 Ubiquiti partition header, header size: 56 bytes, name: "PARTkernel", base address: 0x9F050000, data size: 991701 bytes
232176 0x38AF0 uImage header, header size: 64 bytes, header CRC: 0x32F51524, created: 2020-06-23 13:48:15, image size: 991637 bytes, Data Address: 0x80002000, Entry Point: 0x80002000, data CRC: 0xF8DD2887, OS: Linux, CPU: MIPS, image type: OS Kernel Image, compression type: lzma, image name: "MIPS Ubiquiti Linux-2.6.32.68"
232240 0x38B30 LZMA compressed data, properties: 0x5D, dictionary size: 8388608 bytes, uncompressed size: 2844788 bytes
1223885 0x12ACCD Ubiquiti partition header, header size: 56 bytes, name: "PARTrootfs", base address: 0x9F150000, data size: 7995392 bytes
1223941 0x12AD05 Squashfs filesystem, little endian, version 4.0, compression:lzma, size: 7737669 bytes, 1000 inodes, blocksize: 262144 bytes, created: 2020-06-23 13:48:17
9219397 0x8CAD45 gzip compressed data, from Unix, last modified: 2020-06-23 13:46:06
9219799 0x8CAED7 Signed Ubiquiti end header, RSA 2048 bit, header size: 264 bytes
I would believe that I should remove
268 0x10C Ubiquiti partition header, header size: 56 bytes, name: "PARTu-boot", base address: 0x9F000000, data size: 231788 bytes
115476 0x1C314 Certificate in DER format (x509 v3), header length: 4, sequence length: 64
143220 0x22F74 U-Boot version string, "U-Boot 1.1.4-s1102 (Mar 5 2019 - 17:13:19)"
143508 0x23094 CRC32 polynomial table, big endian
224688 0x36DB0 CRC32 polynomial table, big endian