SPI NAND: a USB transfer that fails fails the operation

CHANGELOG.md

@@ -4,6 +4,14 @@ The version lives in `_VER` in `src/main.c`. Binaries are published only as the
 [`latest`](https://github.com/OpenIPC/microsnander/releases/latest) release, rebuilt
 from every push to `main`; this file is the change history.
 
+## 1.20.2 — 2026-11-04
+
+- SPI NAND: a USB transfer that fails now fails the operation. The result of a read from the
+  cache and of a status read was not looked at: a read ended with `Status: OK` and wrong data,
+  a write programmed a page over data it had not read, and page data that never reached the
+  chip still ended in a program command and `Status: OK`. The read, write or erase stops with
+  a message, and the failed page is not kept. So does the detection, when the ECC setup fails.
+
 ## 1.20.1 — 2026-11-04
 
 - Faster SPI NAND reads: the ECC check of a page takes the status its ready poll has already

src/main.c

@@ -36,7 +36,7 @@
 struct flash_cmd prog;
 extern unsigned int bsize;
 
-#define _VER	"1.20.1"
+#define _VER	"1.20.2"
 
 const char *ms_version = _VER;