diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index f5e649a2a..3db9112af 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -2391,11 +2391,11 @@ void MifareCIdent(bool is_mfc) {
     if (res == 2) {
 
         // Check for Magic Gen4 GTU with default password :
-        // Get config should return 30 bytes.
+        // Get config should return 30 or 32 bytes
         AddCrc14A(gen4GetConf, sizeof(gen4GetConf) - 2);
         ReaderTransmit(gen4GetConf, sizeof(gen4GetConf), NULL);
         res = ReaderReceive(buf, par);
-        if (res == 32) {
+        if (res == 32 || res == 34) {
             isGen = MAGIC_GEN_4GTU;
             goto OUT;
         }
diff --git a/client/luascripts/hf_mf_ultimatecard.lua b/client/luascripts/hf_mf_ultimatecard.lua
index b9011c36f..4a70935bb 100644
--- a/client/luascripts/hf_mf_ultimatecard.lua
+++ b/client/luascripts/hf_mf_ultimatecard.lua
@@ -186,7 +186,7 @@ local function read_config()
     atqaf = atqa1..' '..atqa2
     cardtype, cardprotocol, gtustr, atsstr = 'unknown', 'unknown', 'unknown', 'unknown'
     if magicconfig == nil then lib14a.disconnect(); return nil, "can't read configuration, "..err_lock end
-    if #magicconfig ~= 64 then lib14a.disconnect(); return nil, "partial read of configuration, "..err_lock end
+    if #magicconfig ~= 64 and #magicconfig ~= 68 then lib14a.disconnect(); return nil, "partial read of configuration, "..err_lock end
     if gtumode == '00' then gtustr = 'Pre-write/Shadow Mode'
     elseif gtumode == '01' then gtustr = 'Restore Mode'
     elseif gtumode == '02' then gtustr = 'Disabled'
diff --git a/doc/magic_cards_notes.md b/doc/magic_cards_notes.md
index 7b494d65c..c8decbfe2 100644
--- a/doc/magic_cards_notes.md
+++ b/doc/magic_cards_notes.md
@@ -1009,7 +1009,7 @@ The card will be identified only if the password is the default one. One can ide
 ```
 hf 14a raw -s -c -t 1000 CF00000000C6
 ```
-If the card is an Ultimate Magic Card, it returns 30 bytes.
+If the card is an Ultimate Magic Card, it returns 30 or 32 bytes.
 ### Magic commands
 ^[Top](#top) ^^[Gen4](#g4top)
 
@@ -1133,7 +1133,7 @@ hf 14a raw -s -c -t 1000 CF00000000CE02
 ...
 ```
 
-👉 **TODO** In Mifare Ultralight / NTAG mode, the special writes (option -s, -e, -r) do not apply. Use `script run hf_mf_ultimatecard` for UID and signature, and `hf mfu wrbl` for PWD and PACK. 
+👉 **TODO** In Mifare Ultralight / NTAG mode, the special writes (`hf mfu restore` option `-s`, `-e`, `-r`) do not apply. Use `script run hf_mf_ultimatecard` for UID and signature, and `hf mfu wrbl` for PWD and PACK. 
 
 ### Change ATQA / SAK
 ^[Top](#top) ^^[Gen4](#g4top)