kn_rf|\
kng_rc|\
linkits7688|\
- linkits7688d|\
m2m|\
m3|\
m4-4M|\
rt-ac51u|\
rt-g32-b1|\
rt-n10-plus|\
+ rt-n12p|\
rt-n13u|\
rt-n14u|\
rt-n15|\
timecloud|\
tiny-ac|\
u25awf-h1|\
+ u7621-06-256M-16M|\
+ u7628-01-128M-16M|\
ur-326n4g|\
ur-336un|\
v22rw-2x2|\
+ vonets,var11n-300|\
vocore-8M|\
vocore-16M|\
vocore2|\
zbt-wa05|\
zbt-we1326|\
zbt-we2026|\
+ zbtlink,zbt-we3526|\
zbt-we826-16M|\
zbt-we826-32M|\
zbt-wg2626|\
c50|\
mr200|\
tl-wr840n-v4|\
+ tl-wr840n-v5|\
tl-wr841n-v13)
[ "$magic" != "03000000" ] && {
echo "Invalid image type."