diff --git a/rom_src/main.asm b/rom_src/main.asm
index 6370d8f..bf3e0e0 100644
--- a/rom_src/main.asm
+++ b/rom_src/main.asm
@@ -130,15 +130,24 @@ save_config:
 
 
 init_cpld:
+.check_ram48k:
     ld a, (cfg.ram)    ; if ram == 48K - run basic48
     cp 1               ; ...
-    jr nz, .do_load    ; ...
+    jr nz, .check_plus3_disabled ; ...
     ld a, #10          ; ...
     ld bc, #7ffd       ; ...
     out (c), a         ; ...
     ld a, #4           ; ...
     ld bc, #1ffd       ; ...
-    out (c), a         ;
+    out (c), a         ; ...
+    jr .do_load
+.check_plus3_disabled:
+    ld a, (cfg.plus3)  ; if plus3 disabled - set 1ffd rom to basic48
+    or a               ; ... this is required for case when plus3 will be
+    jr nz, .do_load    ; ... activated later by magic menu - this prevents
+    ld a, #4           ; ... hang if user activating plus3 while basic48 active
+    ld bc, #1ffd       ; ...
+    out (c), a         ; ...
 .do_load:
     ld b, CFG_T        ; B = registers count
     ld c, #ff          ;