diff --git a/.github/README.md b/.github/README.md
index b59dd2b..a0955f4 100644
--- a/.github/README.md
+++ b/.github/README.md
@@ -46,10 +46,16 @@ App patching system for PS4/PS5.
 - Extract and upload [patch1.zip](https://github.com/illusionyy/PS-Game-Patch/releases/latest) xml files to `/data/user/patches`
   - `xml_orbis` for PS4 Game Patches
   - `xml_prospero` for PS5 Game Patches
-- On PS5, Open options menu and select "Keep in Home" to keep this icon on the home screen. If you forget, uninstall the shortcut and re-send payload to add the shortcut back.
+- On PS5, in Media Tab, Open options menu and select "Keep in Home" to keep this icon on the home screen. If you forget, uninstall the shortcut and re-send payload to add the shortcut back.
 - Open webpage at `http://127.0.0.1:23900` or console IP on another device.
 - Apply patches and they should work!
 
+## Troubleshooting
+
+- If you encounter issues, try the following:
+- Games don't start and eventually shutdown at splash screen
+  - Using FTP, delete cache files at `/data/user/patch_backup`, restart system and send payload again.
+
 ### Confirmed working firmwares:
 - PS4:
   - 9.00 - 12.52
diff --git a/shared/memory.c b/shared/memory.c
index 8096486..9b001c1 100644
--- a/shared/memory.c
+++ b/shared/memory.c
@@ -17,6 +17,9 @@
 #include "memory.h"
 
 #define BACKUP_VER 22761  // not random nya, 22761 does mean something.
+#define UPDATE_NUM (128 * 1024) // base num
+#define UPDATE_VER (UPDATE_NUM + 1) // version num, change to invalidate cache
+
 int sceKernelUsleep(int);
 
 uintptr_t pid_chunk_scan_data(const int pid, const uintptr_t mem_start, const uintptr_t mem_sz, const void* data, const size_t data_sz, const size_t pattern_offset)
@@ -218,7 +221,7 @@ void gen_backup_path(const char* file, const char* pattn, const size_t pattn_off
         static StringId bn = 0xff;
         bn = bn != 0xff ?: stringid_l("BACKUP_VER: " dstr(BACKUP_VER), -1);
         const StringId fn = stringid_l(pattn, -1) ^ stringid_l(file, -1) ^ bn;
-        snprintf(buf, len, BACKUP_DATA_PATCH_PATH "/fw_0x%08x_0x%08x_v%d.bin", fw, fn, BACKUP_VER);
+        snprintf(buf, len, BACKUP_DATA_PATCH_PATH "/fw_0x%08x_0x%08x_v%d_u%d.bin", fw, fn, BACKUP_VER, UPDATE_VER);
     }
 }