diff --git a/bin/pwnagotchi b/bin/pwnagotchi
index aa462297..35a9cf5e 100755
--- a/bin/pwnagotchi
+++ b/bin/pwnagotchi
@@ -69,6 +69,7 @@ def do_auto_mode(agent):
                     # deauth all client stations in order to get a full handshake
                     for sta in ap['clients']:
                         agent.deauth(ap, sta)
+                        time.sleep(1)  # delay to not trigger nexmon firmware bugs
 
             # An interesting effect of this:
             #
diff --git a/pwnagotchi/__init__.py b/pwnagotchi/__init__.py
index 96cdb5c1..447e9833 100644
--- a/pwnagotchi/__init__.py
+++ b/pwnagotchi/__init__.py
@@ -91,7 +91,7 @@ def cpu_load(tag=None):
         parts0 = _cpu_stats[tag]
     else:
         parts0 = _cpu_stat()
-        time.sleep(0.1)
+        time.sleep(0.1)     # only need to sleep when no tag
     parts1 = _cpu_stat()
     if tag: _cpu_stats[tag] = parts1
 
@@ -167,3 +167,4 @@ def reboot(mode=None):
 
     os.system("sync")
     os.system("shutdown -r now")
+    os.system("service pwnagotchi restart")
diff --git a/pwnagotchi/ai/train.py b/pwnagotchi/ai/train.py
index 2d72e6e6..cba14dfe 100644
--- a/pwnagotchi/ai/train.py
+++ b/pwnagotchi/ai/train.py
@@ -116,10 +116,7 @@ class AsyncTrainer(object):
     def _save_ai(self):
         logging.info("[ai] saving model to %s ..." % self._nn_path)
         temp = "%s.tmp" % self._nn_path
-        back = "%s.bak" % self._nn_path
         self._model.save(temp)
-        if os.path.isfile(self._nn_path):
-            os.replace(self._nn_path, back)
         os.replace(temp, self._nn_path)
 
     def on_ai_step(self):
@@ -180,7 +177,13 @@ class AsyncTrainer(object):
                     logging.info("[ai] learning for %d epochs ..." % epochs_per_episode)
                     try:
                         self.set_training(True, epochs_per_episode)
+                        # back up brain file before starting new training set
+                        if os.path.isfile(self._nn_path):
+                            back = "%s.bak" % self._nn_path
+                            os.replace(self._nn_path, back)
+                        self._view.set("mode", "  ai")
                         self._model.learn(total_timesteps=epochs_per_episode, callback=self.on_ai_training_step)
+                        self._view.set("mode", "  AI")
                     except Exception as e:
                         logging.exception("[ai] error while training (%s)", e)
                     finally:
diff --git a/pwnagotchi/ui/display.py b/pwnagotchi/ui/display.py
index ab0f3a15..f77e002b 100644
--- a/pwnagotchi/ui/display.py
+++ b/pwnagotchi/ui/display.py
@@ -43,6 +43,9 @@ class Display(View):
     def is_waveshare27inch(self):
         return self._implementation.name == 'waveshare27inch'
 
+    def is_waveshare27inchPartial(self):
+        return self._implementation.name == 'waveshare27inchPartial'
+
     def is_waveshare29inch(self):
         return self._implementation.name == 'waveshare29inch'
 
@@ -101,7 +104,8 @@ class Display(View):
 
         while True:
             self._canvas_next_event.wait()
-            self._canvas_next_event.clear()
+            if self._implementation.name != 'waveshare27inchPartial':
+                self._canvas_next_event.clear()
             self._implementation.render(self._canvas_next)
 
     def _on_view_rendered(self, img):
diff --git a/pwnagotchi/ui/hw/__init__.py b/pwnagotchi/ui/hw/__init__.py
index eb9beec0..e5d1aec0 100644
--- a/pwnagotchi/ui/hw/__init__.py
+++ b/pwnagotchi/ui/hw/__init__.py
@@ -8,6 +8,7 @@ from pwnagotchi.ui.hw.waveshare1 import WaveshareV1
 from pwnagotchi.ui.hw.waveshare2 import WaveshareV2
 from pwnagotchi.ui.hw.waveshare3 import WaveshareV3
 from pwnagotchi.ui.hw.waveshare27inch import Waveshare27inch
+from pwnagotchi.ui.hw.waveshare27inchPartial import Waveshare27inchPartial
 from pwnagotchi.ui.hw.waveshare29inch import Waveshare29inch
 from pwnagotchi.ui.hw.waveshare144lcd import Waveshare144lcd
 from pwnagotchi.ui.hw.waveshare154inch import Waveshare154inch
@@ -48,6 +49,9 @@ def display_for(config):
     elif config['ui']['display']['type'] == 'waveshare27inch':
         return Waveshare27inch(config)
 
+    elif config['ui']['display']['type'] == 'waveshare27inchPartial':
+        return Waveshare27inchPartial(config)
+
     elif config['ui']['display']['type'] == 'waveshare29inch':
         return Waveshare29inch(config)
 
diff --git a/pwnagotchi/ui/hw/waveshare27inchPartial.py b/pwnagotchi/ui/hw/waveshare27inchPartial.py
new file mode 100644
index 00000000..e5e3f95f
--- /dev/null
+++ b/pwnagotchi/ui/hw/waveshare27inchPartial.py
@@ -0,0 +1,77 @@
+import logging
+
+import pwnagotchi.ui.fonts as fonts
+from pwnagotchi.ui.hw.base import DisplayImpl
+from PIL import Image
+
+
+class Waveshare27inchPartial(DisplayImpl):
+    def __init__(self, config):
+        super(Waveshare27inchPartial, self).__init__(config, 'waveshare27inchPartial')
+        self._display = None
+        self.counter = 0
+
+    def layout(self):
+        fonts.setup(10, 9, 10, 35, 25, 9)
+        self._layout['width'] = 264
+        self._layout['height'] = 176
+        self._layout['face'] = (66, 27)
+        self._layout['name'] = (5, 73)
+        self._layout['channel'] = (0, 0)
+        self._layout['aps'] = (28, 0)
+        self._layout['uptime'] = (199, 0)
+        self._layout['line1'] = [0, 14, 264, 14]
+        self._layout['line2'] = [0, 162, 264, 162]
+        self._layout['friend_face'] = (0, 146)
+        self._layout['friend_name'] = (40, 146)
+        self._layout['shakes'] = (0, 163)
+        self._layout['mode'] = (239, 163)
+        self._layout['status'] = {
+            'pos': (38, 93),
+            'font': fonts.status_font(fonts.Medium),
+            'max': 40
+        }
+        return self._layout
+
+
+
+    def initialize(self):
+        logging.info("initializing waveshare v1 2.7 inch display")
+        from rpi_epd2in7.epd import EPD
+        self._display = EPD(fast_refresh=True)
+        self._display.init()
+
+
+    def render(self, canvas):
+        # have to rotate, because lib work with portrait mode only
+        # also I have 180 degrees screen rotation inn config, not tested with other valuesjk:w
+        rotated = canvas.rotate(90, expand=True)
+        if self.counter == 0:
+            self._display.smart_update(rotated)
+
+        # print invert
+        # print true image
+        elif self.counter % 35 == 0:
+            inverted_image = rotated.point(lambda x: 255-x)
+            self._display.display_partial_frame(inverted_image, 0, 0, 264, 176, fast=True)
+            self._display.display_partial_frame(rotated, 0, 0, 264, 176, fast=True)
+        
+        # partial update full screen
+        elif self.counter % 7 == 0:
+            # face + text under
+            #self._display.display_partial_frame(rotated, 35, 35, 190, 115, fast=True)
+            # full screen partial update
+            self._display.display_partial_frame(rotated, 0, 0, 264, 176, fast=True)
+        
+        # partial update face 
+        self._display.display_partial_frame(rotated, 110, 84, 92, 40, fast=True)
+
+        if self.counter >= 100:
+            self.counter = 0
+        else:
+            self.counter += 1
+
+
+    def clear(self):
+        pass
+
diff --git a/pwnagotchi/ui/hw/waveshare35lcd.py b/pwnagotchi/ui/hw/waveshare35lcd.py
index 97011b3a..1c5979b6 100644
--- a/pwnagotchi/ui/hw/waveshare35lcd.py
+++ b/pwnagotchi/ui/hw/waveshare35lcd.py
@@ -40,7 +40,7 @@ class Waveshare35lcd(DisplayImpl):
         from pwnagotchi.ui.hw.libs.fb import fb
         self._display = fb
         logging.info("initializing waveshare 3,5inch lcd display")
-        self._display.ready_fb(i=1)
+        self._display.ready_fb(i=0)
         self._display.black_scr()
 
     def render(self, canvas):
diff --git a/pwnagotchi/ui/view.py b/pwnagotchi/ui/view.py
index 9ecc857f..f452a940 100644
--- a/pwnagotchi/ui/view.py
+++ b/pwnagotchi/ui/view.py
@@ -16,6 +16,8 @@ from pwnagotchi.ui.components import *
 from pwnagotchi.ui.state import State
 from pwnagotchi.voice import Voice
 
+import RPi.GPIO as GPIO
+
 WHITE = 0xff
 BLACK = 0x00
 ROOT = None
diff --git a/pwnagotchi/utils.py b/pwnagotchi/utils.py
index 29c36327..69915c9d 100644
--- a/pwnagotchi/utils.py
+++ b/pwnagotchi/utils.py
@@ -254,6 +254,9 @@ def load_config(args):
     elif config['ui']['display']['type'] in ('ws_27inch', 'ws27inch', 'waveshare_27inch', 'waveshare27inch'):
         config['ui']['display']['type'] = 'waveshare27inch'
 
+    elif config['ui']['display']['type'] in ('ws_27inchPartial', 'ws27inchPartial', 'waveshare_27inchPartial', 'waveshare27inchPartial'):
+        config['ui']['display']['type'] = 'waveshare27inchPartial'
+
     elif config['ui']['display']['type'] in ('ws_29inch', 'ws29inch', 'waveshare_29inch', 'waveshare29inch'):
         config['ui']['display']['type'] = 'waveshare29inch'
 
@@ -304,11 +307,13 @@ def total_unique_handshakes(path):
 
 def iface_channels(ifname):
     channels = []
-    output = subprocess.getoutput("/sbin/iwlist %s freq" % ifname)
+
+    phy = subprocess.getoutput("/sbin/iw %s info | grep wiphy | cut -d ' ' -f 2" % ifname)
+    output = subprocess.getoutput("/sbin/iw phy%s channels | grep ' MHz' | sed 's/^.*\[//g' | sed s/\].*\$//g" % phy)
     for line in output.split("\n"):
         line = line.strip()
-        if line.startswith("Channel "):
-            channels.append(int(line.split()[1]))
+        channels.append(int(line))
+
     return channels