> ## Documentation Index > Fetch the complete documentation index at: https://help.vori.com/llms.txt > Use this file to discover all available pages before exploring further. # Hardware Troubleshooting Guide > Review this document for troubleshooting POS hardware ### Introduction When a device at the register stops working, this is the first place to look. This guide walks through the initial steps to try for each piece of Vori Point of Sale (POS) hardware, from the cashier display to the scanner scale, before you reach out for help. Work through each device's steps **in order**, and move to the next step only if the issue isn't fixed. Most hardware problems clear up within the first step or two. *** ### Download and print the guide Keep a copy at every lane so your team can troubleshoot on the spot. Download the one-page guide. Print it single-sided and post it at each register or in the back office. *** ### Start here: restart the POS app For any device that stops responding, restart the POS app first: 1. Tap the **gear** icon in the bottom-right of the cashier screen. 2. Tap **Restart App**. 3. Log back in and test the device. If the device still isn't working, follow the steps for that device below. If those don't fix it, contact Vori Support. *** ### Cashier display The large monitor facing the cashier, showing the cart and quick-action buttons. 1. From the Back Office, restart the lane remotely: go to **Point of Sale > Lanes**, find the lane, and select **Restart POS**. 2. If the screen is black or unresponsive, check that the **display** and **power** cables are firmly seated behind the display. For the full walkthrough, see [Fix a black or frozen POS cashier screen](/hardware-and-integrations/cashier-screen-and-shopper-display/fix-a-black-or-frozen-pos-cashier-screen). ⚠️ **Caution:** Don't remotely restart a lane that's mid-checkout. *** ### Shopper display The horizontal touchscreen facing the shopper, showing the logo, cart, and rewards login. 1. Restart just the display: tap the **gear** icon, then **Shopper Display > Restart Shopper Display**. The POS keeps running. 2. If it's still down, confirm the display's cables are firmly plugged into the lane computer under the counter. For more, see [Troubleshoot shopper display communication issues](/hardware-and-integrations/cashier-screen-and-shopper-display/troubleshoot-shopper-display-communication-issues). *** ### Payment terminal The small vertical device with a keypad and card slot. 1. Tap the **gear** icon and find **Payment Terminal** and **Internet** in the connections list. 2. If the terminal is frozen, hold the **red + green** keys until **Reboot** appears, tap **OK**, then wait about a minute for the **Welcome** screen. 🚨 **Warning:** Never reboot or power-cycle the terminal mid-payment. It can leave a transaction in an unknown state. For the full guide, see [Fix your POS payment terminal](/hardware-and-integrations/payment-terminals/fix-your-pos-payment-terminal). *** ### 10-key cashier keyboard The physical number keypad used to ring up and log in. 1. Reseat the keyboard's cable where it connects to the lane computer (and any hub or adapter in between): unplug it, wait about 10 seconds, then plug it back in firmly. 2. Restart the lane computer and test again. For more, see [How to troubleshoot the 10-key cashier keyboard](/hardware-and-peripherals/cashier-screen-and-shopper-display/how-to-troubleshoot-the-10-key-cashier-keyboard). *** ### Handheld scanner The cordless barcode scanner that sits on a charging cradle. 1. Confirm it's charging on the cradle: a flashing green light means charging, and solid green means full. 2. Restart the POS app: tap the **gear** icon, then **Device Status > Restart App**, and test again. 3. Reseat the cradle's cable where it connects to the lane computer. For pairing and connectivity steps, see [Troubleshoot handheld barcode scanner connectivity](/hardware-and-peripherals/cashier-handheld-scanner-and-countertop-scale/troubleshoot-handheld-barcode-scanner-connectivity). *** ### Scanner scale The flatbed scanner with a built-in weigh plate and vertical tower. 1. Check the live weight in the top-right of the cashier screen. `0.00lb` is normal. 2. If the scale isn't ready, clear the plate of any items, paper, or cables resting on it or leaning against the tower, then zero it. For the full walkthrough, see [Troubleshoot the Zebra MP7000 scanner scale](/hardware-and-peripherals/cashier-handheld-scanner-and-countertop-scale/troubleshoot-the-zebra-mp7000-scanner-scale). *** ### Receipt printer The thermal printer that prints shopper receipts at the lane. 1. Check for paper: pull the grey tab to open the paper compartment, load a roll if empty, then close the hatch fully. 2. Check power: the status light in the top-left should be lit. If not, make sure the switch on the front-left of the printer is on. 3. Restart the POS app and test again. For more, see [How to fix a POS receipt printer that's not printing](/hardware-and-peripherals/receipt-printer-and-supplies/how-to-fix-a-pos-receipt-printer-thats-not-printing). *** ### Still need help? If you've worked through the steps for your device and it still isn't working, contact Vori Support. Have your store name and the lane number ready so the team can jump in faster. You can reach us through [live chat](/getting-started-with-vori/support/use-live-chat-for-support-questions-and-requests), at [support@vori.com](mailto:support@vori.com), or by calling 415-779-0021.