fix bl

Author: NonPIayerCharacter

BK7231Flasher/Flashers/BL602Flasher.cs

@@ -254,22 +254,25 @@ internal bool writeFlash(byte[] data, int adr, int len = -1)
         {
             try
             {
+                var bufLen = 512;
+                if(chipType == BKType.BL602) bufLen = 4096;
                 if(len < 0)
                     len = data.Length;
                 int ofs = 0;
                 int startAddr = adr;
                 logger.setProgress(0, len);
                 doErase(adr, (len + 4095) / 4096);
                 addLogLine("Starting flash write " + len);
-                byte[] buffer = new byte[4100];
+                byte[] buffer = new byte[bufLen + 4];
                 logger.setState("Writing", Color.White);
+                Thread.Sleep(1000);
                 while(ofs < len)
                 {
                     cancellationToken.ThrowIfCancellationRequested();
-                    addLog("." + formatHex(ofs) + ".");
+                    if(ofs % 0x1000 == 0) addLog("." + formatHex(ofs) + ".");
                     int chunk = len - ofs;
-                    if(chunk > 4096)
-                        chunk = 4096;
+                    if(chunk > bufLen)
+                        chunk = bufLen;
                     buffer[0] = (byte)(adr & 0xFF);
                     buffer[1] = (byte)((adr >> 8) & 0xFF);
                     buffer[2] = (byte)((adr >> 16) & 0xFF);
@@ -636,11 +639,11 @@ public override void doReadAndWrite(int startSector, int sectors, string sourceF
                     addLogLine("No filename given!");
                     return;
                 }
-                if(!sourceFileName.Contains("readResult"))
+                if(!sourceFileName.StartsWith("readResult"))
                 {
                     if(chipType != BKType.BL602)
                     {
-                        addErrorLine($"Firmware write is not supported on {chipType}");
+                        addErrorLine($"Firmware write is not supported on {chipType}. If you intend to restore a backup, make sure that file name starts with 'readResult'");
                         return;
                     }
                     //if(bOverwriteBootloader)

BK7231Flasher/FormMain.cs

@@ -43,7 +43,7 @@ public partial class FormMain : Form, ILogListener
             { BKType.RTL8720D,   "RTL8720DN (AmebaD)" },
             { BKType.LN882H,     "LN882H" },
             { BKType.BL602,      "BL602" },
-            { BKType.BL702,      "BL702 (read)" },
+            { BKType.BL702,      "BL702 (read/restore)" },
             { BKType.ECR6600,    "ECR6600" },
             { BKType.W800,       "W800" },
             { BKType.W600,       "W600 (write)" },