Avalon 1246: All 3 boards are stuck in an idle state ECHU[1 1 1]

[AvalonWarlock]

Hi I have a lot of avalon 1246 miners, i purchased them second hand a quite a few have these errors. I can't get them out of the idle state despite updating firmware, factory resetting, changing power supply and control board. I even swapped out the middle hashboard as I though that was down. Anyone have any idea what to do?

Code:

{'STATUS':[{'STATUS':'S','When':55,'Code':11,'Msg':'Summary','Description':'cgminer 4.11.1'}],'SUMMARY':[{'Elapsed':37,'MHS av':0.00,'MHS 30s':0.00,'MHS 1m':0.00,'MHS 5m':0.00,'MHS 15m':0.00,'Found Blocks':0,'Getworks':3,'Accepted':0,'Rejected':0,'Hardware Errors':0,'Utility':0.00,'Discarded':363064,'Stale':0,'Get Failures':0,'Local Work':2,'Remote Failures':0,'Network Blocks':1,'Total MH':0.0000,'Work Utility':0.00,'Difficulty Accepted':0.00000000,'Difficulty Rejected':0.00000000,'Difficulty Stale':0.00000000,'Best Share':0,'Device Hardware%':0.0000,'Device Rejected%':0.0000,'Pool Rejected%':0.0000,'Pool Stale%':0.0000,'Last getwork':0}]}
{'STATUS':[{'STATUS':'S','When':55,'Code':70,'Msg':'CGMiner stats','Description':'cgminer 4.11.1'}],'STATS':[{'STATS':0,'ID':'AVA100','Elapsed':37,'Calls':0,'Wait':0.000000,'Max':0.000000,'Min':99999999.000000,'MM ID0':'Ver[1246-22011901_4ec6bb0_3e42b91] DNA[020100006652c524] MEMFREE[1490416.0] NETFAIL[0 0 0 0 0 0 0 0] SYSTEMSTATU[Work: In Work, Hash Board: 1 ] Elapsed[38] BOOTBY[0x11.00000000] LW[0] MH[0 0 0] HW[0] DH[0.000%] Temp[25] TMax[25] TAvg[25] Fan1[5459] Fan2[5493] Fan3[5420] Fan4[5437] FanR[74%] Vo[337] PS[0 1201 1349 103 1390 1350 1569] PLL0[0 0 0 0] PLL1[0 0 0 0] PLL2[0 0 0 0] GHSspd[0.00] DHspd[0.000%] GHSmm[0.00] GHSavg[0.00] WU[0.00] Freq[0.00] Led[0] MGHS[0.00 0.00 0.00] MTmax[-273 -273 -273] MTavg[0 0 0] TA[120] Core[A3201] PING[0] POWS[0] HASHS[0 1 0] POOLS[0] SoftOFF[0] ECHU[1 1 1] ECMM[1] SF0[436 456 476 496] SF1[436 456 476 496] SF2[436 456 476 496] PVT_T0[-273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273] PVT_T1[-273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273] PVT_T2[-273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273 -273] PVT_V0[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] PVT_V1[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] PVT_V2[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] MW[0 0 0] MW0[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] MW1[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] MW2[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] ASICCRC0[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] ASICCRC1[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] ASICCRC2[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] CRC[0 0 0] POW_I2C[OK] FACOPTS0[] FACOPTS1[] ATAOPTS0[--avalon10-freq 436:456:476:496 --avalon10-voltage-level 56 ] ATAOPTS1[--avalon10-freq 436:456:476:496 --avalon10-voltage-level 56 ] ADJ[1] COP[0 0 0] MPO[3200] MVL[87] ATABD0[436 456 476 496] ATABD1[436 456 476 496] ATABD2[436 456 476 496] WORKMODE[1]','MM Count':1,'Smart Speed':1,'Voltage Level Offset':0,'Nonce Mask':25}]}

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[unicornmangle]

ive done the exact same things and have the exact same problem and 0 answers. im assuming its a firmware problem. i didnt have issues until i lost a hashboard than i flashed new firmware than i used serial to downgrade firmware. im tried every firmware miner has been sitting for 12 months. ive contacted canaan many times with no resolution other than a long process of mailing in a hashboard to them.

my issue is also middle hashboard and when i swap it around the 0 1 0 will change to wherever that hashboard is. there is numbers on the boards 2 are identical and 1 is higher im assuming to balance the hashpower that board must be the highest bin.

[BitMaxz]

Are you ever tried to check the middle cables or connection or terminals of the middle hash board there might be a connection problem. Try to replace and clean up the terminals of the middle hash board using lacquer flo thinner or any board cleaner.

Then update here but if you have a multimeter check the wire cables and terminal for short circuits and lost connection.