An old secp256k1 keypair string created by ver ^1.0.1 can not parse to key in ver 4.0.0

[ipconfiger]

compressed public key: "02abd0411432f201a5dbc3320f9a3ea1a99f15ca90431c147c11dde9f8da4c5029" got Exception:"Invalid point compression"

Invalid point compression pubkey=02abd0411432f201a5dbc3320f9a3ea1a99f15ca90431c147c11dde9f8da4c5029
flutter: #0      ECCurve.decompressPoint (package:pointycastle/ecc/ecc_fp.dart:356:7)
flutter: #1      ECCurveBase.decodePoint (package:pointycastle/ecc/ecc_base.dart:215:13)
flutter: #2      loadPublicKey (package:secp256k1cipher/src/secp256k1Cipher.dart:158:27)

I use next code to make hex String pubkey to an ECPublicKey.

ECPublicKey loadPublicKey(String storedkey) {
  final param = ECCurve_secp256k1();
  if (storedkey.length < 120) {
    var code_list = <int>[];
    for (var _idx = 0; _idx < storedkey.length - 1; _idx += 2) {
      final hex_str = storedkey.substring(_idx, _idx + 2);
      code_list.add(int.parse(hex_str, radix: 16));
    }
    final Q = param.curve.decodePoint(code_list);
    return ECPublicKey(Q, param);
  } else {
    final x = BigInt.parse(storedkey.substring(0, 64), radix: 16);
    final y = BigInt.parse(storedkey.substring(64), radix: 16);
    final Q = param.curve.createPoint(x, y);
    return ECPublicKey(Q, param);
  }
}

it works fine on old version, and new version, but if pass a pub key string in parameter storedkey, it comes an Exception