diff --git a/firmware/firmware.asm b/firmware/firmware.asm
index 97f4349..1357cd0 100644
--- a/firmware/firmware.asm
+++ b/firmware/firmware.asm
@@ -1870,6 +1870,12 @@ testl   or      a, (ix+$1c)           ; third byte of length
         jr      nz, test2
 test1   ld      hl, (tmpbu2+$1c)
         sbc     hl, de
+        jr      nz, test2
+        cp      $3f
+        jr      nz, nzxco
+        inc     a
+        ld      (tmpbu2+$1c), a
+nzxco   xor     a
 test2   pop     de
         ret
 
diff --git a/firmware/strings.asm b/firmware/strings.asm
index b2930f6..1544447 100644
--- a/firmware/strings.asm
+++ b/firmware/strings.asm
@@ -1,7 +1,7 @@
 cad0    defb    'Core:             ',0
 cad1    defm    'http://zxuno.speccy.org', 0
-        defm    'ZX-Uno BIOS v0.59', 0
-        defm    'Copyleft ', 127, ' 2016 ZX-Uno Team', 0
+        defm    'ZX-Uno BIOS v0.60', 0
+        defm    'Copyleft ', 127, ' 2017 ZX-Uno Team', 0
         defm    'Processor: Z80 3.5MHz', 0
         defm    'Memory:    512K Ok', 0
         defm    'Graphics:  normal, hi-color', 0
@@ -35,7 +35,7 @@ cad8    defm    $10, '                         ', $10, '              ', $10, 0
 cad9    defb    $14, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11
         defb    $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $18, $11
         defb    $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $15, 0
-        defb    '   BIOS v0.59    ', $7f, '2016 ZX-Uno Team', 0
+        defb    '   BIOS v0.60    ', $7f, '2017 ZX-Uno Team', 0
 cad10   defb    'Hardware tests', 0
         defb    $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11, $11
         defb    $11, $11, $11, $11, 0