GS724TPPv3 (FW v6.1.0.10) PoE MIBs error

Hi,
I'm trying to check/enable/disable PoE on switch ports via SNMP. The problem is that I'm using MIBs for firmware version 6.2.1.12 but my switch has firmware version 6.1.0.10 and I do not wish to update the switch firmware version.
When I try to "walk" PoE MIBs I get the error:

'''
> snmpwalk -v2c -c <COMMUNITY_STRING> <IP> iso.3.6.1.2.1.105.1.2.1.2
Did not find 'transmission' in module SNMPv2-SMI (C:\usr\share\snmp\mibs/EtherLike-MIB.txt)
Unlinked OID in EtherLike-MIB: dot3 ::= { transmission 7 }
Undefined identifier: transmission near line 118 of C:\usr\share\snmp\mibs/EtherLike-MIB.txt
POWER-ETHERNET-MIB::pethObjects.2.1.2 = No Such Object available on this agent at this OID

'''

Additionally, when I try to check all available MIBs, the output stucks on following:

'''

> snmpwalk -v2c -c <COMMUNITY_STRING> <IP> 1.3.6.1.2.1

(...)

Q-BRIDGE-MIB::dot1qForwardAllForbiddenPorts.4089 = Hex-STRING: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Timeout: No Response from <IP>

'''

Thank you in advance for reply!