fix tests

diff --git a/shared/psbt.py b/shared/psbt.py
index 6cf88f1..f17648a 100644
--- a/shared/psbt.py
+++ b/shared/psbt.py
@@ -13,12 +13,12 @@ from uio import BytesIO
 from sffile import SizerFile
 from multisig import MultisigWallet, disassemble_multisig_mn
 from exceptions import FatalPSBTIssue, FraudulentChangeOutput
-from serializations import ser_compact_size, deser_compact_size, hash160, hash256
-from serializations import CTxIn, CTxInWitness, CTxOut, ser_string, ser_uint256, COutPoint
+from serializations import ser_compact_size, deser_compact_size, hash160
+from serializations import CTxIn, CTxInWitness, CTxOut, ser_string, COutPoint
 from serializations import ser_sig_der, uint256_from_str, ser_push_data
 from serializations import SIGHASH_ALL, SIGHASH_SINGLE, SIGHASH_NONE, SIGHASH_ANYONECANPAY
 from serializations import ALL_SIGHASH_FLAGS
-from opcodes import OP_CHECKMULTISIG, OP_RETURN
+from opcodes import OP_CHECKMULTISIG
 from glob import settings
 
 from public_constants import (
diff --git a/testing/test_hobble.py b/testing/test_hobble.py
index 31934cc..ae9dece 100644
--- a/testing/test_hobble.py
+++ b/testing/test_hobble.py
@@ -411,7 +411,7 @@ def test_h_qrscan(en_okeys, set_hobble, scan_a_qr, need_keypress, press_cancel,
     for ss in keys:
         need_keypress(KEY_QR)
         scan_a_qr(ss)
-        time.sleep(0.5)
+        time.sleep(1)
 
         title, story = cap_story()
         if en_okeys:
@@ -428,7 +428,7 @@ def test_h_qrscan(en_okeys, set_hobble, scan_a_qr, need_keypress, press_cancel,
         need_keypress(KEY_QR)
         tt = f'B$H{dt}0100'+('A'*80)
         scan_a_qr(tt)
-        time.sleep(0.5)
+        time.sleep(1)
 
         if dt == 'E':
             title, story = cap_story()
diff --git a/testing/test_ownership.py b/testing/test_ownership.py
index 29fa5fe..774c8fc 100644
--- a/testing/test_ownership.py
+++ b/testing/test_ownership.py
@@ -582,7 +582,7 @@ def test_20_more_build_after_match(sim_exec, import_ms_wallet, clear_ms, wipe_ca
 
 
 def test_named_wallet_search_fail(load_shared_mod, goto_home, pick_menu_item, nfc_write,
-                                  cap_story):
+                                  cap_story, sim_root_dir):
     addr = fake_address(AF_P2WSH, True)
     addr = f"{addr}?wallet=unknown"
     cc_ndef = load_shared_mod('cc_ndef', '../shared/ndef.py')
@@ -595,7 +595,8 @@ def test_named_wallet_search_fail(load_shared_mod, goto_home, pick_menu_item, nf
     pick_menu_item('Advanced/Tools')
     pick_menu_item('NFC Tools')
     pick_menu_item('Verify Address')
-    open('debug/nfc-addr.ndef', 'wb').write(ccfile)
+    with open(f'{sim_root_dir}/debug/nfc-addr.ndef', 'wb') as f:
+        f.write(ccfile)
     nfc_write(ccfile)
 
     time.sleep(1)
@@ -610,7 +611,7 @@ def test_named_wallet_search_fail(load_shared_mod, goto_home, pick_menu_item, nf
 def test_named_wallet_search(wname, valid, method, clear_ms, import_ms_wallet, is_q1,
                              load_shared_mod, goto_home, pick_menu_item, scan_a_qr,
                              cap_story, need_keypress, nfc_write, use_testnet,
-                             wipe_cache, settings_set):
+                             wipe_cache, settings_set, sim_root_dir):
 
     from test_multisig import make_ms_address, HARD
 
@@ -671,7 +672,8 @@ def test_named_wallet_search(wname, valid, method, clear_ms, import_ms_wallet, i
         pick_menu_item('Advanced/Tools')
         pick_menu_item('NFC Tools')
         pick_menu_item('Verify Address')
-        open('debug/nfc-addr.ndef', 'wb').write(ccfile)
+        with open(f'{sim_root_dir}/debug/nfc-addr.ndef', 'wb') as f:
+            f.write(ccfile)
         nfc_write(ccfile)
         # press_select()
 
diff --git a/testing/test_sign.py b/testing/test_sign.py
index 915fdc1..0e581a2 100644
--- a/testing/test_sign.py
+++ b/testing/test_sign.py
@@ -1855,12 +1855,15 @@ def test_op_return_signing(op_return_data, dev, fake_txn, bitcoind_d_sim_watch,
     assert "Multiple OP_RETURN outputs:" not in story  # always just one - core restriction
 
     try:
-        assert len(op_return_data) <= 200
-        expect = op_return_data.decode("ascii")
+        assert len(op_return_data) <= 160
+        try:
+            expect = op_return_data.decode("ascii")
+        except:
+            # not ascii
+            expect = op_return_data.hex()
     except:
         expect = binascii.hexlify(op_return_data).decode()
-        if len(op_return_data) > 200:
-            expect = expect[:200] + "\n ⋯\n" + expect[-200:]
+        expect = expect[:160] + "\n ⋯\n" + expect[-160:]
 
     assert expect in story
     tx = end_sign(accept=True, finalize=True).hex()
diff --git a/testing/test_sssp.py b/testing/test_sssp.py
index b14d469..4fb0a2f 100644
--- a/testing/test_sssp.py
+++ b/testing/test_sssp.py
@@ -610,7 +610,11 @@ def test_deltamode_signature(active_policy, setup_sssp, bitcoind, settings_set,
     # check wrong signature happened
     assert signed != signed2
     probs = wo.testmempoolaccept([signed2.hex()])[0]
-    assert 'Signature must be zero' in probs['reject-reason'], probs
+    try:
+        # old bitcoind
+        assert 'Signature must be zero' in probs['reject-reason'], probs
+    except AssertionError:
+        assert 'mandatory-script-verify-flag-failed' in probs['reject-reason'], probs
     assert not probs['allowed']
 
     # check right signature
diff --git a/testing/test_teleport.py b/testing/test_teleport.py
index 2171e39..51070af 100644
--- a/testing/test_teleport.py
+++ b/testing/test_teleport.py
@@ -421,19 +421,17 @@ def test_tx_wrong_pub(rx_start, tx_start, cap_menu, enter_complex, pick_menu_ite
 @pytest.mark.parametrize('M', [4])
 @pytest.mark.parametrize('segwit', [True])
 @pytest.mark.parametrize('incl_xpubs', [ False ])
-@pytest.mark.parametrize('hobbled', [ False, True ])
 def test_teleport_ms_sign(M, use_regtest, make_myself_wallet, segwit, num_ins, dev, clear_ms,
                           fake_ms_txn, try_sign, incl_xpubs, bitcoind, cap_story, need_keypress,
                           cap_menu, pick_menu_item, grab_payload, rx_complete, press_select,
                           ndef_parse_txn_psbt, press_nfc, nfc_read, settings_get, settings_set,
                           txid_from_export_prompt, sim_root_dir,
-                          set_hobble, hobbled, readback_bbqr, nfc_is_enabled):
+                          set_hobble, readback_bbqr, nfc_is_enabled):
 
     # IMPORTANT: won't work if you start simulator with --ms flag. Use no args
     all_out_styles = list(unmap_addr_fmt.keys())
     num_outs = len(all_out_styles)
 
-    set_hobble(hobbled)
     clear_ms()
     use_regtest()