I confirm you that M5Stack-Fire with UiFlow v1.14.0 shows the same error at boot: rst:0x3 (SW_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:5216 ho 0 tail 12 room 4 load:0x40078000,len:14052 load:0x40080400,len:3792 entry 0x4008063c E (1165) esp_image: Image length 3619088 doesn't fit in partition length 3604480 E (1165) boot: Factory app partition is not bootable E (1167) boot: No bootable app partitions in the partition table ets Jun 8 2016 00:22:57