Getting Wrong Magic Byte for OTA ESP32

[vishal.borle]

Hello to all,

I am trying to update ESP32 OTA using SIM800C module. I am using below API's:

Code: [Select all] [Expand/Collapse]

1. [Update.begin(total_file_size);
2. if (Update.write((uint8_t*)json_buff, data_size) != data_size) {
3.             Update.printError(Serial);
4.           }]
5.  
6. If writing completed then call:
7. [Codebox=c file=Untitled.c][if (total_file_size == total_data_size) {
8.             if (Update.end(true)) { //true to set the size to the current progress
9.               Serial.printf("Update Success: %u\nRebooting...\n", total_data_size);
10.               if (Update.isFinished()) {
11.                 Serial.println("Update successfully completed. Rebooting.");
12.                 ESP.restart();
13.               } else {
14.                 Serial.println("Update not finished? Something went wrong!");
15.               }
16.             } else {
17.               Update.printError(Serial);
18.             }]
19. But after 4096 writing complete getting wrong magic bytes ERROR.
20.  
21. Please suggest me what should i do now?

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