wrote:
I have no problem with the SD card after the update a couple of months ago. However the latest update corrupted the wifi connection. Lenovo is a joke and I will certainly go back to Huawei when their new tablet phone comes.
Could you post the version# of the update that started your WiFi issues?
As someone who's been a software professional for nearly 4 decades, I know well that an update that's not extensively tested can break as many things as it fixes, and in current common OSes on computers, tablets & phones, nothing is sufficiently tested (it can't be, with major OS upgrades coming once a year. For stability, it would need to be once every 2-3 years at most). The rule of thumb in R&D management is that ~2x the amount of person-hours invested by the SW developers needs to be invested in testing and QA (including basicunit testing hours in developer hours).
Therefore, as a tule, I don't install updates unless I see a detailed change log and the update specifically (according to user reports) fixes issues I have. I also usually wait a 6-12 months before installing any major update, and have never been sorry for waiting.
Of course, that's a difficult to do with Android, since device vendors never publish either "known bug" lists or release notes.
But what about security updates? No difference. The security-software industry is mostly fearmongering, as far as individual devices go (breaches of large databases are a different thing entirely). Unless your tablet has significant sensitive data on it (e.g., you do banking transaction on it, or credit card info), the actual risk of security issues affecting any given tablet are low.
Security updates are frequently issued at most a couple weeks, and sometimes only days, after the SW vendor finds about the security issue. That's not enough testing time to make sure the update doesn't cause unrelated functional issues (or even introduces mew security bugs. I know of several actual such cases).
Given my tablet use as mainly a media-consumption device, and one used nearly always behind a well configured & protected home network, I consider delaying all update installation (including security update) until there's a lot of user experecience a completely acceptable risk.
With Android, it's easy to install paid Play Store apps remotely, from a computer, so there isn't really a reason for the tablet itself to contain PII CC info.