Questions about ECDSA about micro-ecc HOT 2 CLOSED

#include <uECC.h>

// private key: 0xbdb51a16eb6461ec16f84a7b6f19e20d0b9aa558fa0e9ae4bb493ff779f14255
static const uint8_t privateKey[] = {
    0xbd, 0xb5, 0x1a, 0x16, 0xeb, 0x64, 0x61, 0xec,
    0x16, 0xf8, 0x4a, 0x7b, 0x6f, 0x19, 0xe2, 0x0d,
    0x0b, 0x9a, 0xa5, 0x58, 0xfa, 0x0e, 0x9a, 0xe4,
    0xbb, 0x49, 0x3f, 0xf7, 0x79, 0xf1, 0x42, 0x55
};
// keccak256 of "1234": 0x387a8233c96e1fc0ad5e284353276177af2186e7afa85296f106336e376669f7
uint8_t hash[32] = {
  0x38, 0x7a, 0x82, 0x33, 0xc9, 0x6e, 0x1f, 0xc0,
  0xad, 0x5e, 0x28, 0x43, 0x53, 0x27, 0x61, 0x77,
  0xaf, 0x21, 0x86, 0xe7, 0xaf, 0xa8, 0x52, 0x96,
  0xf1, 0x06, 0x33, 0x6e, 0x37, 0x66, 0x69, 0xf7
};

bool eth_sign_hashed_message(const uint8_t *privateKey, const uint8_t *digest, uint8_t *result) {
    int success = uECC_sign(
        (const uint8_t*)(privateKey),
        (const uint8_t*)(digest),
        32,
        (uint8_t*)result,
        uECC_secp256k1()
    );
    return (success == 1);
}

uint8_t signatureRegular[64];
eth_sign_hashed_message(privateKey, hash, signatureRegular);


// expected sig:
// 65f333960946f37b57336199fd98826f4b334f70137f5f3a7ef2b2622007c6d77905672bd78dce53e37eb3ddef0c2219296db1795b466b5a89ffecda9d2106fc (+1c recId)

// uECC sig
// 45d6243b60fc6f589e7c40d597ee4664c0fec8a6121f72dcc67ce10015d9dc760b545ac2c0fc49561e9b5643f19a89670d1c9c572e469578fa79dfb08fb2d110 (+1b|1c recId -> both not valid)

pragma solidity ^0.8.13;
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";

contract TestECDSA {
    using ECDSA for bytes32;

    function recover(bytes memory signature, bytes32 hashedPayload) public pure returns (address) {
        bytes32 signedHash = hashedPayload.toEthSignedMessageHash();
        return (signedHash.recover(signature));
    }
}