From 01a640b1ed61ad29145f7bf9181c1472bb93708f Mon Sep 17 00:00:00 2001
From: davide3011 <davide.grilli@outlook.com>
Date: Mon, 16 Feb 2026 00:16:36 +0100
Subject: [PATCH] update README.md

---
 README.md | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/README.md b/README.md
index 28ecdb1bb..c20f5b333 100644
--- a/README.md
+++ b/README.md
@@ -116,6 +116,33 @@ pip install -e ".[gui,crypto]"
 python run_electrum
 ```
 
+##### Note for ARM64
+
+On ARM64, PyQt6 6.9+ wheels are not available on PyPI. Install with pinned versions:
+
+```bash
+# Create and activate virtual environment
+python3 -m venv env
+source env/bin/activate
+
+# Upgrade pip and install dependencies
+python3 -m pip install --upgrade pip
+pip install -r contrib/requirements/requirements.txt
+pip install cryptography>=2.6
+
+# Install PyQt6 (ARM64-compatible versions)
+pip install --only-binary PyQt6,PyQt6-Qt6 \
+    'PyQt6>=6.7.0,<6.8.0' \
+    'PyQt6-Qt6>=6.7.0,<6.8.0' \
+    'PyQt6-sip==13.10.2'
+
+# Install in development mode (without gui extra)
+pip install -e .
+
+# Run
+python3 run_electrum
+```
+
 ##### Optional: QML GUI on Linux (simulates Android interface)
 
 ```bash