Then all options tried, you only have left CH341A programmer and SOIC8 test clip cable, you will have to open the bottom of the laptop up to use those.

That, or contact Asus and ask them for proper BIOS update.

@Lost_N_BIOS I tried flashing the bios to spi chip directly after modifying the dumped bios file with UBU v1.71.1 but the laptop did not boot :(
Any ideas?? Here is the modified bios http://www.mediafire.com/file/se0eiz5tyi6ljg5/x505.zip with stock too ;)

@nonid - I have no clue what's going on there, you don't have earlier post in this thread?? Was that reply meant to be on another thread? If yes, please link me to it and I will move your reply and this one.
In general, how are you dumping this BIOS you then modified with UBU? If dumped via FPT and you did not unlock FD first and dump entire BIOS, then you likely only dumped the BIOS region, which you can't program back with programmer (In easy, usual manner).

If you are not using programmer, then OK. Please explain in full detail what you did, how you dumped BIOS and what part of the BIOS that is, and how you flashed it back to the board. Also, what did you update with UBU?
Since you are working on a dumped BIOS, I don't need to see stock BIOS, I need to see your original untouched dump and mod that failed. Please upload your untouched dump so I can compare to mod BIOS.

* Checked what you provided, looks like either a bad mod, or bad dump originally that you modified? It's missing 15 BIOS modules in last volume and the entire VTF module.
Probably a bad dump originally, how are you dumping, what software version are you using and what is your CHIP ID if using programmer?
I also only see stock NVRAM inside your mod BIOS, which does not look like it came from a "Dump", unless that dump was from a stock BIOS programmed to the board previously, which is not ideal either.