Face the same issue as @Garnet on my TL-WR802N v4
So overlay (root) is only 2.1M and I cant install much additional packages therefore
root@OpenWrt:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 3.5M 3.5M 0 100% /rom
tmpfs 28.0M 1016.0K 27.0M 4% /tmp
/dev/mtdblock4 2.1M 1.9M 196.0K 91% /overlay
overlayfs:/overlay 2.1M 1.9M 196.0K 91% /
tmpfs 512.0K 0 512.0K 0% /dev
Just realizied this after succesfull flash with latest 23.05.0 Factory image of OpenWrt (new device)
According to Openwrt TOH of TP-Link TL-WR802N v4 the device should have with V4:
Flash MB: 8
RAM MB: 64
So should be normally not some 4/32 device as mentioned previously by @slh
Label information on device:
Mode: TL-WR802N(EU) Ver. 4.0
S/N: 223C251002739
So seems to me that this information on the HW-page is outdated for at least some devices
Reflash to orgin Firmware OEM Stock EU just worked for me with TL-WR802N(EU)_V4_200623 and not with latest TL-WR802N(EU)_V4_221008
Not sure how this information could be added to the wiki page TP-Link TL-WR802N v4 so that others are not suprised about this fact
Official support thread is closed Discourse: support-for-tp-link-tl-wr802n-v4