diff --git a/client/scripts/test_t55x7.lua b/client/scripts/test_t55x7.lua
new file mode 100644
index 000000000..3b7ea2e02
--- /dev/null
+++ b/client/scripts/test_t55x7.lua
@@ -0,0 +1,200 @@
+local cmds = require('commands')
+local getopt = require('getopt')
+local bin = require('bin')
+local utils = require('utils')
+
+local format=string.format
+local floor=math.floor
+
+copyright = ''
+author = "Iceman"
+version  = ''
+desc =[[
+This script will program a T55x7 TAG with a configuration and four blocks of data.
+It will then try to detect and read back those block data and compare if read data matches the expected data.
+
+
+lf t55xx wipe
+lf t55xx detect
+lf t55xx write b 1 d 00000000
+lf t55xx write b 2 d ffffffff
+lf t55xx write b 3 d 80000000
+lf t55xx write b 4 d 00000001
+
+Loop:
+
+try write different configuration blocks, and read block1-4 and comparing the read values with the values used to write.
+
+testsuit for T55XX commands demodulation
+
+]]
+example = [[
+    1. script run test_t55x7
+]]
+usage = [[
+
+script run test_t55x7
+
+Arguments:
+    -h       this help
+]]
+
+local TIMEOUT = 2000 -- Shouldn't take longer than 2 seconds
+local DEBUG = true -- the debug flag
+
+local data_blocks_cmds = {    
+    [1] = '00000000',
+    [2] = 'ffffffff',
+    [3] = '80000000',
+    [4] = '00000001',
+}
+
+---
+-- A debug printout-function
+local function dbg(args)
+    if not DEBUG then
+        return
+    end
+
+    if type(args) == "table" then
+        local i = 1
+        while args[i] do
+            dbg(args[i])
+            i = i+1
+        end
+    else
+        print("###", args)
+    end
+end
+---
+-- This is only meant to be used when errors occur
+local function oops(err)
+    print("ERROR: ",err)
+end
+---
+-- Usage help
+local function help()
+    print(copyright)
+    print(author)
+    print(version)
+    print(desc)
+    print("Example usage")
+    print(example)
+end
+---
+-- Exit message
+local function exitMsg(msg)
+    print( string.rep('--',20) )
+    print( string.rep('--',20) )
+    print(msg)
+    print()
+end
+
+local function WipeCard()
+
+   local wipe_cmds = {
+        [1] = 'lf t55xx wipe',
+        [2] = 'lf t55xx detect',
+   }
+    for _ = 1, #wipe_cmds do
+        local c = wipe_cmds[_]
+        dbg(c);  core.console(c)
+    end
+    
+    local wipe_data_cmd = "lf t55xx write b %s d %s"
+    for _ = 1, #data_blocks_cmds do
+        local val = data_blocks_cmds[_]
+        local c = string.format(wipe_data_cmd, _, val);
+        core.console(c)
+    end
+end
+---
+-- lf t55xx read
+local function CheckReadBlock(block)
+    local data, msg
+    -- blockno, page1, override, pwd
+    data, msg = core.t55xx_readblock(block, "0", "0", "")
+    if not data then
+        return ""
+    end
+    return ('%08X'):format(data)
+end
+
+local function test()
+    
+    -- PSK1 Modulations to test.  (2blocks)
+    local process_block0_cmds = {
+        [1] = '00001040',
+        [2] = '00041040', 
+        [3] = '00081040',
+        [4] = '000c1040',
+        [5] = '00101040',
+        [6] = '00141040',
+        [7] = '00181040',
+        [8] = '001c1040',
+    }
+
+    local y
+    local block = "00"
+
+    for _ = 1, #process_block0_cmds do
+    
+        local p_config_cmd = process_block0_cmds[_]
+        core.clearCommandBuffer()
+
+        -- Write Config block
+        dbg(('lf t55xx write b 0 d %s'):format(p_config_cmd))
+        local config = tonumber(p_config_cmd, 16)
+        local writecmd = Command:new{cmd = cmds.CMD_T55XX_WRITE_BLOCK,arg1 = config, arg2 = block, arg3 = '00', data = '00'}
+        local err = core.SendCommand(writecmd:getBytes())
+        if err then return oops(err) end
+        local response = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT)
+
+        -- Detect 
+        local res, msg = core.t55xx_detect()
+        if not res then 
+            print("can't detect modulation, skip to next config")
+        else
+            -- Loop block1-2
+            for _ = 1, #data_blocks_cmds do
+                local val = data_blocks_cmds[_]
+                local blockdata, msg = CheckReadBlock(_)
+                if blockdata ~= val then
+                    print( ('Test %s == %s Failed'):format(val, blockdata))
+                    core.console( format('rem -- block %d  value %s failed', _, val))
+                else
+                    print( ('Test %s == %s OK'):format(val, blockdata))
+                end
+            end
+        end       
+    end
+end
+
+local function main(args)
+
+    print( string.rep('--',20) )
+    print( string.rep('--',20) )
+
+    -- Arguments for the script
+    for o, arg in getopt.getopt(args, 'h') do
+        if o == "h" then return help() end
+    end
+
+    core.clearCommandBuffer()
+
+    print('Starting test,  wiping card')
+    WipeCard()
+    print('Detecting card')
+    local res, msg = core.t55xx_detect()
+    if res then
+        print('Starting test')
+        test()
+    else
+        print("can't detect modulation. Test failed. Ending.")
+    end
+    
+--    test()
+    exitMsg('Tests finished')
+    
+end
+main(args)