Hi ESP32-S3 N16R8 is not functioning properly

[Awe7]

ESP32-S3 N16R8 cannot run normally after burning, and the universal ESP32-S3 DevKit also does not work. My development board is s3 n16r8

After restarting, the following error log appears

E (589) esp_ota_ops: not found otadata
E (589) esp_ota_ops: not found otadata

[lukeswitz]

Can confirm 1.4 does not work at all with the n16r8

Edit: and that error is the partitions file, it should look like:

# Name,     Type, SubType,  Offset,    Size,
nvs,        data, nvs,      0x9000,    0x5000,
phy_init,   data, phy,      0xF000,    0x1000,
app0,       app,  factory,  0x10000,   0x420000,
spiffs,     data, spiffs,   0x430000,  0xBC0000,
coredump,   data, coredump, 0xFF0000,  0x10000,

ota_0 -> factory and add phy_init to match the 8MB table's pattern

[Awe7]

OMG

[Awe7]

I burned the 1.3 firmware and also encountered this issue. I suspect it may be a hardware problem???

E (538) esp_ota_ops: not found otadata
E (538) esp_ota_ops: not found otadata

ESPConnect/

ESP32-S3 (QFN56) (revision v0.2)
ESP32-S3
v0.2
74:4d:bd:7f:28:74 (MAC)
Flash & Clock
16MB
Crystal 40 MHz
CPU Cores : 2 (Dual)
Max CPU Frequency : 240 MHz
Embedded PSRAM : 8MB (AP Memory 3.3 V)
Feature Set
5 capabilities
Wi-Fi
BLE
Dual Core
240 MHz
Embedded PSRAM 8MB (AP Memory 3.3 V)
Package & Revision
Chip Variant
ESP32-S3 (QFN56)
Package Form Factor
56-pin QFN (7 mm x 7 mm)
Revision
v0.2
Max CPU Frequency
240 MHz
CPU Cores
2 (Dual)
Embedded Memory
Embedded PSRAM
8MB (AP Memory 3.3 V)
Flash ID
0x18405E
Flash Manufacturer
Nexperia / NXP (alt) (0x5E)
Flash Device
16 MB
Security
eFuse Block Version
v1.3
Flash Encryption
disabled
Flash Encryption Details
FLASH_CRYPT_CNT=0x0 (set bits=0)
Flash Encryption Mode
XTS AES (supported on this chip)
Secure Boot
disabled
Secure Boot Type
v2 (digest-based, supports revocation)
JTAG Protection
enabled
USB Protection
enabled
Security Note
ESP32-S3 supports XTS encryption, HMAC key slots, and flexible key purposes.
Peripherals
PWM/LEDC
8 channels · 4 timers · Single LEDC group.
Connection
USB Bridge
QinHeng Electronics - CH340 (0x7523)
Connection Baud
460,800 bps
Documentation
Hardware Reference
Datasheet
Technical Reference Manual
Errata
Hardware Design Guidelines

[lukeswitz]

Some discussion on that and other v1.4 breaking changes going on here: https://www.instructables.com/HackerBox-0124-Bus-Driver/#discuss

The message goes away if you flash with this csv, but doesn't seem to be any hardware issue. Are you getting any other odd behavior with it? The real question I have: does v1.4 work with your s3 unit in all/any modes and what planks you are using? Thanks for the reply

[Awe7]

ESP32-S3 Core Board N16R8

[Awe7]

Can you provide me with the correct 1.4 firmware? Thanks
ESP32-S3 Core Board N16R8

[fdufnews]

Just burnt the N16R8 that is on the repo with the WebFlasher and it works.
I also use the same partition file with the T-Display that is using an ESP32-S3-N16R8 and have no problem with it apart a clipped message I see from time to time after the reset.
Edit: maybe a different partition file may suppress the message after the reset. We will test it

[Awe7]

---Original--- From: ***@***.***> Date: Tue, Mar 10, 2026 22:34 PM To: ***@***.***>; Cc: ***@***.******@***.***>; Subject: Re: [geo-tp/ESP32-Bus-Pirate] Hi ESP32-S3 N16R8 is not functioningproperly (Issue #103) fdufnews left a comment (geo-tp/ESP32-Bus-Pirate#103) Just burnt the N16R8 that is on the repo with the WebFlasher and it works. I also use the same partition file with the T-Display that is using an ESP32-S3-N16R8 and have no problem with it apart a clipped message I see from time to time after the reset. Capture.d.ecran.du.2026-03-10.15-16-48.png (view on web) — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.Message ID: ***@***.***>

[Awe7]

That should be a hardware issue with me. 0.0

[fdufnews]

How did you burn the firmware, by compiling the source or using the webflasher?

[Awe7]

webflasher https://tasmota.github.io/install/ https://web.esphome.io/ https://thelastoutpostworkshop.github.io/ESPConnect/ The above web pages have all been tried to burn

[fdufnews]

You are using the native USBport of the board not the COM one?

[Awe7]

COM one esphome or Tasmota They all started normally

00:00:00.253 CMD: Fall back to serial port, no SOF packet detected on USB port
00:00:00.254 HDW: ESP32-S3 v0.2
00:00:00.264 UFS: FlashFS mounted with 12596 kB free
00:00:00.272 CFG: Loaded from File, Count 7
00:00:00.279 QPC: Count 2
00:00:00.320 BRY: Berry initialized, RAM used 3766 bytes
00:00:00.336 Project tasmota - Tasmota Version 15.3.0(release-tasmota32)-3.3.7(2026-02-19T13:57:18)
00:00:00.617 WIF: WifiManager active for 3 minutes
00:00:01.021 HTP: Web server active on tasmota-7F2874-2164 with IP address 192.168.4.1

00:00:00.253 CMD: Fall back to serial port, no SOF packet detected on USB port
00:00:00.254 HDW: ESP32-S3 v0.2
00:00:00.264 UFS: FlashFS mounted with 12596 kB free
00:00:00.272 CFG: Loaded from File, Count 7
00:00:00.279 QPC: Count 3
00:00:00.320 BRY: Berry initialized, RAM used 3766 bytes
00:00:00.336 Project tasmota - Tasmota Version 15.3.0(release-tasmota32)-3.3.7(2026-02-19T13:57:18)
00:00:00.617 WIF: WifiManager active for 3 minutes
00:00:01.003 HTP: Web server active on tasmota-7F2874-2164 with IP address 192.168.4.1

[fdufnews]

Please use the ESP32 Bus Pirate Web Flasher to install the firmware.

• Plug your board using its USB port not the COM one.
• Click on the webflasher link
• Choose ESP32-S3 N16R8
• Follow the instructions

[lukeswitz]

Yes image flashes but can you verify the modes function? V1.3 seems to work. Thanks for the help