I installed the openatv 6.1, of course it does not have the drivers impregnated so the tuners do not work, but I have checked the epg versions installed and they are working.
this and what I found:

File versions of the openpli (not working):
libc6 - 2.19-r0

python-compression - 2.7.3-r5.6
python-lzma - 0.0.8-r0.0
enigma2-plugin-extensions-epgimport - 1.0+git169+6036129-r36
enigma2-plugin-extensions-xmltvimport - 1.0+git82+8611582-r0

File versions of openatv (working):
libc6 - 2.25-r0 - GLIBC (GNU C Library)
python-compression - 2.7.13-r1.3 - Python high-level compression support
python-lzma - 0.0.8-r0 - Backport of Python 3.3's 'lzma' module for XZ/LZMA compressed files
enigma2-plugin-extensions-epgimport - 1.0+git170+9bb6152-r36 - Imports xmltv files into the EPG cache of enigma2
Imports xmltv files into the EPG cache of enigma2.
enigma2-plugin-systemplugins-abmcustommiximporter - 6.1+git2135+b4ab08b-r3 - systemplugins-abmcustommiximporter
Imports ABM CustomMix files from Github.
enigma2-plugin-systemplugins-channelsimporter - 6.1+git2135+b4ab08b-r3 - systemplugins-channelsimporter
Imports a copy of the channel list from a remote receiver and loads it on
the local receiver.
enigma2-plugin-systemplugins-dsayerscustommiximporter - 6.1+git2135+b4ab08b-r3 - systemplugins-dsayerscustommiximporter
systemplugins-dsayerscustommiximporter
epgimport-rytec - 20171116-r0 - Rytec's sources and channels for the EPG importer
Rytec's sources and channels for the EPG importer.
python-importlib - 2.7.13-r1.3 - Python import implementation library
The Python Programming Language.
python3-importlib - 3.5.2-r1.0 - Python import implementation library
The Python Programming Language.
enigma2-plugin-systemplugins-crossepg - 0.8.5+gitr468+6250bd3-r0 - systemplugins-crossepg

At this point you have to be able to install the same versions in the openpli to have everything working again, I think ....