diff --git a/driver-bfsb.c b/driver-bfsb.c
index 412709d..c4042e8 100644
--- a/driver-bfsb.c
+++ b/driver-bfsb.c
@@ -145,9 +145,9 @@ bool bfsb_init(struct thr_info *thr)
        proc->device_data = bitfury;
        bitfury->spi->cgpu = proc;
        bitfury_init_chip(proc);
-       bitfury->osc6_bits = 53;
+       bitfury->osc6_bits = 52;
        bitfury_send_reinit(bitfury->spi, bitfury->slot, bitfury->fasync, bitfury->osc6_bits);
-       bitfury_init_freq_stat(&bitfury->chip_stat, 52, 56);
+       bitfury_init_freq_stat(&bitfury->chip_stat, 48, 54);

        if (proc->proc_id == proc->procs - 1)
            free(devicelist);
diff --git a/driver-bitfury.c b/driver-bitfury.c
index 779ef7c..5c4fe50 100644
--- a/driver-bitfury.c
+++ b/driver-bitfury.c
@@ -121,6 +121,7 @@ tryagain:
        applog(LOG_ERR, "%"PRIpreprv": %s: Giving up after %d tries",
               proc->proc_repr, __func__, tried);
        bitfury->desync_counter = 99;
+       if (tried > 10) exit(1);
        return false;
    }
    ++tried;
@@ -503,12 +504,12 @@ void bitfury_do_io(struct thr_info * const master_thr)

                if (bitfury->mhz_best)
                {
-                   if (bitfury->mhz < bitfury->mhz_best / 2)
-                   {
-                       applog(LOG_WARNING, "%"PRIpreprv": Frequency drop over 50%% detected, reinitialising",
-                              proc->proc_repr);
-                       bitfury->force_reinit = true;
-                   }
+               //  if (bitfury->mhz < bitfury->mhz_best / 2)
+               //  {
+               //      applog(LOG_WARNING, "%"PRIpreprv": Frequency drop over 50%% detected, reinitialising",
+               //             proc->proc_repr);
+               //      bitfury->force_reinit = true;
+               //  }
                }
                if ((int)bitfury->mhz > bitfury->mhz_best && bitfury->mhz_last > bitfury->mhz_best)
                {
@@ -595,9 +596,9 @@ void bitfury_do_io(struct thr_info * const master_thr)
                    ++bitfury->sample_hwe;
                    bitfury->strange_counter += 1;
                }
-               if (++bitfury->sample_tot >= 0x40 || bitfury->sample_hwe >= 8)
+               if (++bitfury->sample_tot >= 0x40 || bitfury->sample_hwe >= 0x10)
                {
-                   if (bitfury->sample_hwe >= 8)
+                   if (bitfury->sample_hwe >= 0x10)
                    {
                        applog(LOG_WARNING, "%"PRIpreprv": %d of the last %d results were bad, reinitialising",
                               proc->proc_repr, bitfury->sample_hwe, bitfury->sample_tot);