diff --git a/en/fpv-nvr.md b/en/fpv-nvr.md
index 08fc6f9..5380ea7 100644
--- a/en/fpv-nvr.md
+++ b/en/fpv-nvr.md
@@ -21,10 +21,10 @@ Selecting hardware to complete OpenIPC FPV kits
 setenv ipaddr 192.168.0.222
 setenv serverip 192.168.0.8
 setenv netmask 255.255.255.0
-setenv bootcmd 'sf probe 0; sf read 0x82000000 0x50000 0x200000; bootm 0x82000000'
-setenv uk 'mw.b 0x82000000 ff 1000000; tftp 0x82000000 uImage.${soc}; sf probe 0; sf erase 0x50000 0x200000; sf write 0x82000000 0x50000 ${filesize}'
-setenv ur 'mw.b 0x82000000 ff 1000000; tftp 0x82000000 rootfs.squashfs.${soc}; sf probe 0; sf erase 0x250000 0x800000; sf write 0x82000000 0x250000 ${filesize}'
-setenv bootargs 'mem=192M console=ttyAMA0,115200 panic=20 root=/dev/mtdblock3 rootfstype=squashfs init=/init mtdparts=hi_sfc:256k(boot),64k(env),2048k(kernel),8192k(rootfs),-(rootfs_data)'
+setenv bootcmd 'sf probe 0; sf read 0x82000000 0x50000 0x300000; bootm 0x82000000'
+setenv uk 'mw.b 0x82000000 ff 1000000; tftp 0x82000000 uImage.${soc}; sf probe 0; sf erase 0x50000 0x300000; sf write 0x82000000 0x50000 ${filesize}'
+setenv ur 'mw.b 0x82000000 ff 1000000; tftp 0x82000000 rootfs.squashfs.${soc}; sf probe 0; sf erase 0x350000 0x800000; sf write 0x82000000 0x350000 ${filesize}'
+setenv bootargs 'mem=192M console=ttyAMA0,115200 panic=20 root=/dev/mtdblock3 rootfstype=squashfs init=/init mtdparts=hi_sfc:256k(boot),64k(env),3072k(kernel),10240k(rootfs),-(rootfs_data)'
 setenv osmem '192M'
 setenv totalmem '256M'
 setenv soc 'hi3536dv100'