Hi @wingsofpolo, If you have replaced it with brand new batteries, it could be that the capacitor is dead. We have a good [[Troubleshhoting logic board components|capacitor wiki]] for more information. Please be careful as capacitors can cause a shock and need to be [guide|2177|discharged] before testing. If you have [link|https://www.electricaltechnology.org/2013/06/how-to-check-capacitor-with-digital.html|tested the capacitor] and it is not working, we have a [guide|3982|capacitor replacement guide]. That guide requires [guide|750|soldering]. It's also possible that the motherboard has failed and needs to be replaced. Unfortunately, we don't have a motherboard replacement guide yet, but if you decide to attempt the repair, it would be great if you documented it for the rest of the community! I hope this helps or gives you a place to start. Thanks you.