which will reset your *ESP* and give you a lot of information before concluding with a ``` WIFI CONNECTED WIFI GOT IP ``` Exit .**uart** by pressing **SYMBOL SHIFT** + **SPACE**. If none of this worked, then the most likely culprits are that you either have a bad *ESP* module or that the power supply you're using is not powerful enough for both your ZX Spectrum Next and the *ESP* module. First try with a different power supply, otherwise return the ESP module for an exchange. Note that different ESP firmware versions have slightly different versions of the commands above so always consult the most up-to-date documentation! #### C. Testing the RTC installation There are several ways of testing if the *RTC* was properly installed the easiest of which is to launch again the *NextZXOS Startup Menu* and then go to the *Tools Submenu*. There apart from the *WIFI setup* option, you will find a *Set Clock* option. Launching it will allow you to program your RTC using just your **cursor** and the **ENTER** keys:  ``` Current date: 05/02/2023 Current time: 10:51:56 Use left/right to move field Use up/down to change value Press ENTER to confirm; BREAK to abort Date has not yet been set Time has not yet been set Set Clock ``` *Fig. 42 – NextZXOS Set Clock utility* If everything worked right, then *NextZXOS* shall start reporting the current time and date on its menus like so:  ``` NextZXOS 3.5MHz > Browser Command Line NextBASIC Calculator Guide More... 1792K 2023-02-05 10:53 ©1982, 1986, 1987 Amstrad Plc. ©2000-2023 Garry Lancaster v2.08 Logical drives: CM ``` *Fig. 43 – RTC Working* If however the clock won't work, there's a very simple way of testing for the *RTC* and that's to give it the **.time** command. If it doesn't work outright, it will produce an output like the one shown in *Fig. 44*. There are a few issues that can occur with the *RTC*; if the output is as above, the most likely culprit is the soldering of the IC onto the board. A cold solder will leave the *RTC* not working, a short somewhere will do the same but the *RTC* IC will start getting hot. If you feel the IC warming up disconnect all power immediately and inspect your soldering.