I did range mod from Phantom 3 Standard range mod , let's do it together... and now my drone's RC doesn't create Wi-Fi access point. This topic is for those unfortunates who've done the same and don't know how to fix it. So please share your situation and ideas. I used mac, filezilla and vim to change files. I defenitely forgot to do "chmod +x" which is thought to be crucial. Today I brought my drone to the official repair service here in Moscow and I'm waiting now for their diagnosis, it should take up to 5 days thay said. It seemed that they have no special instruments for reuploading healthy firmware to RC and drone using service connectors or smth, but who knows.. UPDATE: With common effort, the way to recover has been discovered. Basically, all you need is to connect to TX, RX, GND pins of Wi-Fi module board with UART TTL adapter and open serial console(see pictures here I bricked my p3s with ftp range mod - let's fix it together and here I bricked my p3s with ftp range mod - let's fix it together). Then you should prevent u-boot from loading linux kernel by pressing ESC key and type to u-boot console the next commands(thanks ElMalo): MI124 DRAM: 32 MB Flash: 8 MB In: serial Out: serial Err: serial Press ESC to abort autoboot in 1 seconds ar7240> setenv bootargs board=DJI-WM305 console=ttyS0,115200 root=/dev/mtdblock5 init=/sbin/init mtdparts=ath-nor0:256k@0k(u-boot),64k@256k(u-boot-env),896k@320k(kernel1),3008k@1216k(rootfs1),896k@4224k(kernel2),3008k@5120k(rootfs2),64k@8128k(art),3904k@320k(firmware1),3904k@4224k(firmware2),8192k@0k(all) And then ar7240> bootm 0x9f420000 This will allow you to boot backup copy of system. After that you'll be able to mount main root filesystem: mkdir /tmp/flash And then mount it: mount -t jffs2 mtd3 /tmp/flash Then you can go to /tmp/flash/etc/init.d folder and repair the rcS. In order to recover drone you should repeat all the steps but connect UART to gimbal's board. Here are the pictures of pins you need to connect with your UART adapter. Thanks everyone who participated in the research!