diff --git a/common/defs/blockchain_link.json b/common/defs/blockchain_link.json
index 3c624893cd..424fcdb502 100644
--- a/common/defs/blockchain_link.json
+++ b/common/defs/blockchain_link.json
@@ -255,6 +255,18 @@
     "type": "blockbook",
     "url": ["https://bsc1.trezor.io", "https://bsc2.trezor.io"]
   },
+  "eth:ARB:42161": {
+    "type": "blockbook",
+    "url": ["https://arb1.trezor.io", "https://arb2.trezor.io"]
+  },
+  "eth:BASE:8453": {
+    "type": "blockbook",
+    "url": ["https://base1.trezor.io", "https://base2.trezor.io"]
+  },
+  "eth:OP:10": {
+    "type": "blockbook",
+    "url": ["https://op1.trezor.io", "https://op2.trezor.io"]
+  },
   "eth:ETC:61": {
     "type": "blockbook",
     "url": ["https://etc1.trezor.io", "https://etc2.trezor.io"]
diff --git a/common/defs/ethereum/networks.json b/common/defs/ethereum/networks.json
index 09d314c546..7e6e0b25a2 100644
--- a/common/defs/ethereum/networks.json
+++ b/common/defs/ethereum/networks.json
@@ -56,5 +56,35 @@
         "shortcut": "POL",
         "symbol": "POL",
         "slip44": 966
+    },
+    {
+        "chain": "arb",
+        "chain_id": 42161,
+        "coingecko_id": "arbitrum-one",
+        "is_testnet": false,
+        "name": "Arbitrum One",
+        "shortcut": "ARB",
+        "symbol": "ETH",
+        "slip44": 9001
+    },
+    {
+        "chain": "base",
+        "chain_id": 8453,
+        "coingecko_id": "base",
+        "is_testnet": false,
+        "name": "Base",
+        "shortcut": "BASE",
+        "symbol": "ETH",
+        "slip44": 8453
+    },
+    {
+        "chain": "op",
+        "chain_id": 10,
+        "coingecko_id": "optimistic-ethereum",
+        "is_testnet": false,
+        "name": "Optimism",
+        "shortcut": "OP",
+        "symbol": "ETH",
+        "slip44": 614
     }
 ]
diff --git a/common/defs/support.json b/common/defs/support.json
index 1a7e5b6669..348122827c 100644
--- a/common/defs/support.json
+++ b/common/defs/support.json
@@ -80,12 +80,15 @@
       "erc20:eth:WBTC": "1.8.0",
       "erc20:eth:XCN": "1.11.3",
       "erc20:matic:WAVAX": "1.11.3",
+      "eth:ARB:42161": "1.9.4",
+      "eth:BASE:8453": "1.9.4",
       "eth:BSC:56": "1.9.4",
       "eth:ETC:61": "1.6.2",
       "eth:ETH:1": "1.6.2",
+      "eth:OP:10": "1.9.4",
       "eth:POL:137": "1.9.4",
-      "eth:tSEP:11155111": "1.11.3",
       "eth:tHOL:17000": "1.11.3",
+      "eth:tSEP:11155111": "1.11.3",
       "misc:MAID": "1.7.2",
       "misc:OMNI": "1.7.2",
       "misc:USDT": "1.7.2",
@@ -186,12 +189,15 @@
       "erc20:eth:WBTC": "2.6.1",
       "erc20:eth:XCN": "2.6.1",
       "erc20:matic:WAVAX": "2.6.1",
+      "eth:ARB:42161": "2.6.1",
+      "eth:BASE:8453": "2.6.1",
       "eth:BSC:56": "2.6.1",
       "eth:ETC:61": "2.6.1",
       "eth:ETH:1": "2.6.1",
+      "eth:OP:10": "2.6.1",
       "eth:POL:137": "2.6.1",
-      "eth:tSEP:11155111": "2.6.4",
       "eth:tHOL:17000": "2.6.4",
+      "eth:tSEP:11155111": "2.6.4",
       "misc:ADA": "2.6.1",
       "misc:BNB": "2.6.1",
       "misc:DSOL": "2.6.4",
@@ -221,12 +227,12 @@
       "bitcoin:tPART": "incompatible fork",
       "misc:EOS": "not for T2B1 (#2793)",
       "misc:LSK": "Incompatible mainnet hard-fork",
-      "nem:XEM": "not for T2B1 (#2793)",
       "nem:BREEZE": "not for T2B1 (#2793)",
       "nem:DIM": "not for T2B1 (#2793)",
       "nem:DIMTOK": "not for T2B1 (#2793)",
       "nem:PAC:CHS": "not for T2B1 (#2793)",
-      "nem:PAC:HRT": "not for T2B1 (#2793)"
+      "nem:PAC:HRT": "not for T2B1 (#2793)",
+      "nem:XEM": "not for T2B1 (#2793)"
     }
   },
   "T2T1": {
@@ -310,12 +316,15 @@
       "erc20:eth:WBTC": "2.0.11",
       "erc20:eth:XCN": "2.5.3",
       "erc20:matic:WAVAX": "2.5.3",
+      "eth:ARB:42161": "2.3.5",
+      "eth:BASE:8453": "2.3.5",
       "eth:BSC:56": "2.3.5",
       "eth:ETC:61": "2.0.7",
       "eth:ETH:1": "2.0.7",
+      "eth:OP:10": "2.3.5",
       "eth:POL:137": "2.3.5",
-      "eth:tSEP:11155111": "2.5.4",
       "eth:tHOL:17000": "2.5.4",
+      "eth:tSEP:11155111": "2.5.4",
       "misc:ADA": "2.0.8",
       "misc:BNB": "2.1.5",
       "misc:DSOL": "2.6.4",
@@ -416,12 +425,15 @@
       "erc20:eth:WBTC": "2.8.1",
       "erc20:eth:XCN": "2.8.1",
       "erc20:matic:WAVAX": "2.8.1",
+      "eth:ARB:42161": "2.8.1",
+      "eth:BASE:8453": "2.8.1",
       "eth:BSC:56": "2.8.1",
       "eth:ETC:61": "2.8.1",
       "eth:ETH:1": "2.8.1",
+      "eth:OP:10": "2.8.1",
       "eth:POL:137": "2.8.1",
-      "eth:tSEP:11155111": "2.8.1",
       "eth:tHOL:17000": "2.8.1",
+      "eth:tSEP:11155111": "2.8.1",
       "misc:ADA": "2.8.1",
       "misc:BNB": "2.8.1",
       "misc:DSOL": "2.8.1",
@@ -451,12 +463,12 @@
       "bitcoin:tPART": "incompatible fork",
       "misc:EOS": "not for T3B1 (#2793)",
       "misc:LSK": "Incompatible mainnet hard-fork",
-      "nem:XEM": "not for T3B1 (#2793)",
       "nem:BREEZE": "not for T3B1 (#2793)",
       "nem:DIM": "not for T3B1 (#2793)",
       "nem:DIMTOK": "not for T3B1 (#2793)",
       "nem:PAC:CHS": "not for T3B1 (#2793)",
-      "nem:PAC:HRT": "not for T3B1 (#2793)"
+      "nem:PAC:HRT": "not for T3B1 (#2793)",
+      "nem:XEM": "not for T3B1 (#2793)"
     }
   },
   "T3T1": {
@@ -531,12 +543,15 @@
       "erc20:eth:WBTC": "2.6.1",
       "erc20:eth:XCN": "2.6.1",
       "erc20:matic:WAVAX": "2.6.1",
+      "eth:ARB:42161": "2.6.1",
+      "eth:BASE:8453": "2.6.1",
       "eth:BSC:56": "2.6.1",
       "eth:ETC:61": "2.6.1",
       "eth:ETH:1": "2.6.1",
+      "eth:OP:10": "2.6.1",
       "eth:POL:137": "2.6.1",
-      "eth:tSEP:11155111": "2.6.1",
       "eth:tHOL:17000": "2.6.1",
+      "eth:tSEP:11155111": "2.6.1",
       "misc:ADA": "2.6.1",
       "misc:BNB": "2.6.1",
       "misc:DSOL": "2.6.4",
@@ -566,12 +581,12 @@
       "bitcoin:tPART": "incompatible fork",
       "misc:EOS": "not for T3T1 (#2793)",
       "misc:LSK": "Incompatible mainnet hard-fork",
-      "nem:XEM": "not for T3T1 (#2793)",
       "nem:BREEZE": "not for T3T1 (#2793)",
       "nem:DIM": "not for T3T1 (#2793)",
       "nem:DIMTOK": "not for T3T1 (#2793)",
       "nem:PAC:CHS": "not for T3T1 (#2793)",
-      "nem:PAC:HRT": "not for T3T1 (#2793)"
+      "nem:PAC:HRT": "not for T3T1 (#2793)",
+      "nem:XEM": "not for T3T1 (#2793)"
     }
   },
   "T3W1": {
@@ -646,12 +661,15 @@
       "erc20:eth:WBTC": "2.6.1",
       "erc20:eth:XCN": "2.6.1",
       "erc20:matic:WAVAX": "2.6.1",
+      "eth:ARB:42161": "2.6.1",
+      "eth:BASE:8453": "2.6.1",
       "eth:BSC:56": "2.6.1",
       "eth:ETC:61": "2.6.1",
       "eth:ETH:1": "2.6.1",
+      "eth:OP:10": "2.6.1",
       "eth:POL:137": "2.6.1",
-      "eth:tSEP:11155111": "2.6.1",
       "eth:tHOL:17000": "2.6.1",
+      "eth:tSEP:11155111": "2.6.1",
       "misc:ADA": "2.6.1",
       "misc:BNB": "2.6.1",
       "misc:DSOL": "2.6.4",
@@ -681,12 +699,12 @@
       "bitcoin:tPART": "incompatible fork",
       "misc:EOS": "not for T3W1 (#2793)",
       "misc:LSK": "Incompatible mainnet hard-fork",
-      "nem:XEM": "not for T3W1 (#2793)",
       "nem:BREEZE": "not for T3W1 (#2793)",
       "nem:DIM": "not for T3W1 (#2793)",
       "nem:DIMTOK": "not for T3W1 (#2793)",
       "nem:PAC:CHS": "not for T3W1 (#2793)",
-      "nem:PAC:HRT": "not for T3W1 (#2793)"
+      "nem:PAC:HRT": "not for T3W1 (#2793)",
+      "nem:XEM": "not for T3W1 (#2793)"
     }
   }
 }
diff --git a/tools/check-bitcoin-only b/tools/check-bitcoin-only
index b87269caa4..816cffd993 100755
--- a/tools/check-bitcoin-only
+++ b/tools/check-bitcoin-only
@@ -7,6 +7,7 @@ EXCEPTIONS+=( "omni" )  # OMNI is part of the bitcoin app
 EXCEPTIONS+=( "derive_cardano" )  # field name in Initialize message
 # BIP39 or SLIP39 words that have "dash" and "ripple" in them
 EXCEPTIONS+=( "dash" "ripple" )
+EXCEPTIONS+=( "base" ) # name EVM chain
 
 GREP_ARGS=()
 for exception in "${EXCEPTIONS[@]}"; do